JP2932258B2 - Underwater observation boat - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underwater observation boat provided with an observation room which is driven up and down.

[0002]

2. Description of the Related Art In a state in which a hull is floating, an underwater view is made from an observation window positioned underwater.
There are underwater observation boats like No. 99.

[0003]

In the underwater observation boat as described above, the observation window must be cleaned every three or four days because the observation window is in direct contact with seawater and becomes dirty. However, since the observation window must be submerged, it requires a lot of effort and cost. An object of the present invention is to provide an underwater observation boat which can solve such a problem.

[0004]

In order to achieve the above-mentioned object, according to the present invention, an opening whose side periphery is covered with a wall surface is provided at a portion of the hull which is closer to the inside in plan view, and an observing room is placed in this opening at a high position. It is arranged so that it can be driven up and down between the specific position and the lower specific position.In the upper specific position, the observation window part of the observation room is located above the ship bottom, and conversely in the lower specific position it is below the ship bottom. An underwater observation boat, wherein the observation room body has a shape in plan view that is smaller than the opening by a certain dimension, and the lower surface of the opening has the inside of the opening when the observation room body rises to a high specific position. In addition to providing a closing means that closes the space with the outer periphery of the observation room in a water-tight manner from below, it also sucks water in the space outside the observation room inside the opening and discharges it to the outside of the opening. Drainage means is provided.

In such a configuration, when the observation room is raised to a high specific position and the drainage means is operated, water existing in the space between the opening and the observation room is removed, and the observation window is removed. The outer surface of the device can be easily cleaned using this space.

The present invention is specifically as follows. That is, the opening also has a receiving seat portion around the lower surface portion, and on the other hand, a flange-shaped contact portion is provided near the bottom portion of the observation room body, and when the observation room body is raised to a high specific position, the flange-shaped contact portion is provided. Is a closing means which is configured to abut on the receiving seat portion in a watertight manner. This makes it possible to navigate in a state where the observation room does not protrude greatly downward from the bottom of the ship, and the closing means has a simple structure.

The observation room may be driven up and down through a screw rotating shaft driven by power and a nut body screwed to the screw rotating shaft, or may be driven up and down through a fluid pressure cylinder device. Configuration. According to this, the observation room can be moved up and down without any labor.

[0008]

1 shows an underwater observation boat according to an embodiment of the present invention, A is a side view, B is a plan view, and FIG. 2 is an enlarged side sectional view of a part of the observation boat. 3A and 3B illustrate the operation of the observation boat. FIG. 3A is a left-right longitudinal sectional view showing a state where the observation room is raised, and FIG. 3B is a diagram showing a state where the observation room is lowered.

In these figures, reference numeral 1 denotes a hull propelled by a propeller rotated by an engine, 2 denotes an opening having a rectangular cross section provided at an inward position of the hull 1 in plan view, and 3 denotes an inside of the opening 2. An observing room body 4 which can be vertically driven is provided with a closing means 4 provided on the lower surface of the opening 2 and a drain means 5 for sucking water in the opening 2 and discharging the water outside the opening 2.

The opening 2 is surrounded by a watertight wall 6 around the front, rear, left and right sides. Even if water enters the inside of the opening 2, the hull 1 reduces the buoyancy required for navigation by other drainage parts. It is to be secured by.

The observation room body 3 is a box body whose plan view shape is smaller than the through hole 2 by a certain dimension and is made watertight in its entirety. The observation room body 3 is provided with an observation window 7 on the side wall surface 3a and at an upper position. There is an appropriate entrance and exit, and inside it is provided with traffic facilities and observation seats.

The driving means for vertically moving the observation room 3 is as follows. That is, the gate-shaped frames 8, 8 are erected on the upper deck 1a of the hull 1 at the front and rear positions of the opening 2, and the screw rotating shafts 9, 9 are provided at right and left portions of each frame 8.
Is mounted so that it can be driven to rotate by a motor. On the other hand, as shown in FIG.
The nuts 10 and 10 are fixed, and the screw rotating shafts 9 and 9 are screwed to the nut bodies 10 and 10. Further, a vertical guide means (for example, formed by a roller and a guide track for guiding the roller in the vertical direction) is provided between the wall surface 6 surrounding the opening 2 and the side wall surface 3a of the observation room 3. The observatory chamber 3 is raised and lowered between the high specific position shown in FIG. 3A and the low specific position shown in FIG. 3B while being guided by the vertical guide means by the rotation of the screw rotating shafts 9 and 9. .

At this time, instead of the screw rotation shaft 9 and the nut body 10, the observation room body 3 may be driven up and down by a telescopic driving force of a hydraulic cylinder device or the like.

The closing means 4 is constructed as follows. That is, the receiving seat 11 is provided around the lower surface of the opening 2. The receiving seat portion 11 includes an annular projecting strip-shaped plate 11a fixed to the entire periphery of the front, rear, left and right wall surfaces 6 of the opening 2, and a rubber packing 11b fixed with bolts over the entire lower surface thereof. . On the other hand, the flange-shaped contact portion 12 is provided near the bottom of the observation room body 3, that is,
Specifically, the entire periphery of the bottom plate 13 is extended outward by a predetermined length corresponding to the receiving seat portion 11, and the extended portion 13 a forms the flange-shaped contact portion 12. And observation room 3
Is raised to the high specific position, the flange-shaped abutment portion 12 is pressed against the packing 11b of the receiving seat portion 11 in a watertight manner, and the opening 2
The space between the inside and the outer periphery of the observation room body 3 is closed in a watertight manner from below.

The drainage means 5 is configured such that a drainage pump 15 sucks water in a space inside the opening 2 and outside the side wall surface 3 a of the observation room 3 through a suction pipe 14, and draws water through a drainage pipe 16. It is designed to be released outboard from the skin.

The underwater observation boat of the present invention having such a configuration is handled, for example, as follows. That is, in navigation between the getting on / off place and the underwater observation sea area, as shown in FIG. 3A, the observation room body 3 is raised to the high specific position, and the closing means 4 is closed. Observation room body 3
The water in the space outside is drained by the drainage means 5 to make it absent. As a result, the hull 1 is brought into a state in which the buoyancy due to the removal of water in the opening 2 acts to reduce the draft.
In addition, the observation room body 3 does not protrude greatly downward from the bottom 1b, and can safely navigate in relatively shallow waters, and the state in which propulsion resistance is reduced and high-speed navigation is possible.

In the underwater observation sea area, as shown in FIG. 3B, the observation room 3 is lowered to the lower specified position. As a result, the observation window 7 of the observation room 3 is lowered into the sea below the bottom 1b, and seawater enters between the opening 2 and the observation room 3 to reduce the amount of drainage of the hull 1; , The observation window 7 is further lowered. Thereafter, the hull 1 is made to travel at a low speed so that the underwater view can be enjoyed.

At this time, the fact that the draft of the hull 1 is large and that the observation room 3 is located at the low specific position, the observation room 3 serves as an anti-sway and makes the hull 1 hard to sway, and the seawater surface is low. It is possible to prevent the view window 3 from being located in the vicinity of the view window 3 due to the waves and the sway of the hull, thereby maintaining a good view of the view window.

When the observation window 3 is to be cleaned, the observation room 3 is raised to a high specific position to drain the water in the opening 2, and under this condition, the wall 6 of the opening 2 and the observation room 3 Side wall surface 3a
In the space between the two, and the receiving seat 11 is used as a scaffold. At this time, the observation window 3, which is provided at a relatively low position, can be easily cleaned without using a ladder or the like.

The above embodiment can be modified as follows. That is, the overhang dimension of the flange-shaped abutment portion 12 is increased, and the lower surface of the ship bottom 1 b near the lower portion of the opening 2 serves as the seat portion 11. At this time, the packing 11b is preferably fixed to the flange-shaped contact portion 12. In this case, cleaning of the observation window 7 is performed using the flange-shaped contact portion 12 as a scaffold.

[0021]

According to the present invention constructed as described above, the observation window can be cleaned very easily and at low cost without diving, and the observation room body can be driven up and down, so that the water in the opening can be cleaned. Because it can be moved in and out, efficient high-speed navigation can be performed when the underwater view is not performed, and when the underwater view is performed, the hull of the hull is suppressed and the observation window is positioned relatively deep in the water, so that the underwater view can be improved. .

According to the second aspect of the present invention, the efficiency of high-speed navigation can be made remarkable, and the closing means can be made simple and less likely to cause a failure.

According to the third aspect, the observing room can be moved up and down reliably and labor-saving.

[Brief description of the drawings]

FIG. 1 shows an underwater observation boat according to one embodiment of the present invention,
Is a side view and B is a plan view.

FIG. 2 is an enlarged side sectional view of a part of the observation boat.

FIG. 3 is a view for explaining the operation of the observation boat, in which A is a left-right vertical cross-sectional view showing a state where the observation room is raised, and B is a diagram showing a state where the observation room is lowered.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hull 2 Opening 3 Observation room 4 Closing means 5 Drainage means 6 Wall surface 9 Screw rotating shaft 10 Nut body 11 Receiving seat part 12 Flange-shaped contact part

Continuation of front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B63C 11/49 B63B 35/73

Claims (3)

(57) [Claims] An opening whose side periphery is covered with a wall is provided at a portion of a hull inward in a plan view, and an observation room is disposed in this opening so as to be vertically movable between a high-order specific position and a lower-order specific position. In the upper specific position, the observation window portion of the observation room is located above the ship bottom, and in the lower specific position, it is an underwater observation boat located below the ship bottom. The visual shape is smaller than the opening by a certain dimension, and the space between the opening and the outer periphery of the observing room is watertightly closed from below at the lower surface of the opening when the observing room rises to the high specific position. An underwater observation boat, comprising: a closing means; and a drainage means for sucking water in a space outside the observation room inside the opening and discharging the water outside the opening. 2. The closure means has a receiving seat around the lower surface of the opening and a flange-shaped abutment around the bottom of the observation room, and the flange is raised when the observation room is raised to a high specific position. The underwater observation boat according to claim 1, wherein the shape contact portion is configured to contact the receiving seat portion in a watertight manner. 3. The observation room is configured to be driven up and down through a screw rotating shaft driven by power and a nut body screwed thereto, or is driven up and down through a fluid pressure cylinder device. The underwater observation boat according to claim 1, wherein the underwater observation boat has a configuration.