JP3158249B2 - 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. On the other hand, there is a need to provide an underwater observation boat that allows a relatively large number of passengers to board safely and perform an effective underwater observation. An object of the present invention is to provide an underwater observation boat which can solve such a problem.

According to the present invention, an opening whose side periphery is covered with a wall surface is provided at a position inward of a hull in plan view, and an observing room can be vertically driven between a high position and a lower position in this opening. In the high specific position, the observation window portion of the observation room is positioned above the ship bottom, and in the lower specific position, it is positioned below the ship bottom. The viewing shape is smaller than the opening by a certain dimension, and closing means is provided on the lower surface of the opening to be closed in a water-tight manner when the observation room is raised to a high specific position. In addition to providing drainage means for sucking water in the space outside the observation room and discharging it to the outside of the opening, a relatively small volume is placed at a certain distance outside the ship on both the left and right sides. The floating airframe is connected to the left and right symmetrically using a connecting member, A structure in which the lower surface of the floating body is positioned underwater, the upper surfaces of the floating body and the connecting member are covered with a plate material, and the bow of the hull projects forward from the floating body. It is characterized by having done.

[0005] In the above configuration, when the observation room is raised to the high specific position and the drainage means is operated, water existing in the space between the opening and the observation room is eliminated, and the outer surface of the observation window is removed. Can be easily cleaned using this space. On the other hand, a receiving seat portion is provided around the lower surface portion, and on the other hand, a flange-shaped abutment 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 abutment portion is received. The closing means, which is configured to abut against the seat in a watertight manner,
Navigation is possible without the observation room body projecting greatly downward from the bottom of the ship, and the closing means has a simple structure.

[0006] A floating cavity provided with a lower surface located underwater at a location apart from the hull on both the left and right sides by a certain distance increases the restoring force against rolling. It allows for the formation of a wide deck, which allows a relatively large number of passengers to board safely. Also, when these floating cavities are flooded by the observation drainage fuselage, they compensate for buoyancy and prevent excessive hull tilt and sinking,
Further, when an obstacle approaches from the side of the hull, the obstacle collides with the obstacle and restricts the obstacle from hitting the observation window, thereby preventing the observation window from being damaged.

In addition, the observation room can be moved up and down, so that the observation room can be raised and raised while navigating. You will be able to enjoy the outlook.

[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. The observing room body, which can be driven up and down, is a closing means provided on the lower surface of the opening 3, 5 is a drain means for sucking water in the opening 2 and discharging the water outside the opening 2, and 6 is a draining means. Hull 1
A relatively small-volume floating cavity, 7a and 7b, which is provided so that the lower surface is located in the water, at a location separated by a fixed distance on both the left and right sides, And plate materials.

The opening 2 is surrounded by water-tight wall surfaces 8 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 observing room 3 is a box having a shape in plan view smaller than the opening 2 by a certain dimension and made watertight in its entirety. The observing windows 9 and 10 are provided on the side wall 3a and the bottom plate. Appropriate entrances are provided near the upper part, and traffic equipment and seats are provided inside.

Driving means for vertically moving the observing room 3 is as follows. That is, the upper deck 1 of the hull 1
a, portal-shaped frames 11, 11 are erected on the front and rear positions of the opening 2 and the screw rotating shafts 1
2 and 12 are provided so as to be rotatable by a motor. On the other hand, nut bodies 13, 13 are fixed to the left and right side surfaces of the observation room body 3 as shown in FIG. 3, and the screw rotating shafts 12, 12 are screwed to the nut bodies 13, 13. In addition, 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 8 surrounding the opening 2 and the side wall surface 3a of the observation room 3. The observation room body 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 rotations 12, 12. .

At this time, instead of the screw rotating shaft 12 and the nut body 13, the observing room body 3 may be moved 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 14 is provided around the lower surface of the opening 2. The receiving seat 14 comprises an annular projecting strip 15a fixed to the entire periphery of the front, rear, left and right wall surfaces 8 of the opening 2 and a rubber packing 15b fixed with bolts over the entire lower surface thereof. . On the other hand, a flange-shaped contact portion 16 is provided in the vicinity of the bottom surface of the observation room body 3, that is, specifically, the entire periphery of the bottom plate 17 is outwardly fixed by a predetermined length corresponding to the receiving seat portion 14. The overhanging portion 17a forms the flange-shaped contact portion 16. Then, when the observation room body 3 is raised to the high specific position, the flange-shaped abutting portion 16 is pressed against the packing 15b of the receiving seat portion 14 in a watertight manner.

The drainage means 5 is configured such that a drainage pump 18 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 19, and 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 the navigation between the getting on / off place and the underwater observation sea area, as shown in FIG.
Is closed, and water in a space inside the opening 2 and outside the observation room body 3 is drained by the drainage means 5 to be in a non-existent state. As a result, the hull 1 is in a state in which water absorption is reduced due to buoyancy due to the water exclusion in the opening 2 space, and the observation room body 3 is in a state in which it does not protrude greatly downward from the hull bottom 1b. Can sail to
In addition, the propulsion resistance is reduced and a high-speed navigation is enabled.

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 9 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 and the hull 1 , The observation window 9 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 the observation room 3 is located at the low specific position make the observation room 3 less sway and make the hull 1 hard to shake, and the seawater surface 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 surface 8 of the opening 2 and the observation room 3 Side wall surface 3a
In the space between the two, and the receiving seat portion 14 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 abutting portion 16 is increased, and the lower surface of the ship bottom 1 b near the lower portion of the opening 2 serves as the seat 14. At this time, the packing 15b is preferably fixed to the flange-shaped contact portion 16. In this case, cleaning of the observation window 7 is performed using the flange-shaped contact portion 16 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 view is underwater, the hull of the hull can be suppressed and the observation window can be positioned relatively deep in the water to improve the underwater view. .

A floating cavity provided so that its lower surface is located in the water at a certain distance outside the ship on both sides on both the left and right sides provides a large restoring force against rolls, and provides a strong If water enters the room, it compensates for buoyancy to prevent excessive hull tilting and sinking, and when an obstacle approaches from the side of the hull, restricts collision with the obstacle and hitting the observation window. To prevent the view window from being damaged. A wide deck can be formed, and a wide outboard view accompanying this can be formed, so that a relatively large number of passengers can board safely.

Further, according to the structure of the present invention, the observation window is provided also on the bottom of the ship, so that a wide underwater view including the sea bottom can be safely realized. In addition, it is possible to make the efficiency of high speed navigation safe and remarkable as a whole.

[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 Floating cavity 9 Observation window 10 Observation window 11 Frame 12 Screw rotation shaft 13 Nut body 14 Receiving seat part 15a Overhanging band-like body 15b Packing 16 Flange contact part 17 bottom plate 18 drain pump 19 water absorption pipe 20 drain pipe

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B63C 11/49 B63B 1/12 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. At the high specific position, the observation window portion of the observation room is positioned above the ship bottom, and at the lower specific position, it is positioned below the ship bottom. Is a certain size smaller than the opening, and a closing means is provided on the lower surface of the opening so as to be closed in a watertight manner when the observation room body is raised to a high specific position, and the observation room is provided inside the opening. In addition to providing drainage means for sucking water in the space outside the body and discharging it to the outside of the opening, floating a relatively small volume at a certain distance outside the ship on both sides of the hull The cavities are integrally connected symmetrically with the left and right using the connecting member, and both floating cavities The lower surface of the body is to be located in the water, the upper surfaces of the floating cavity and the connecting member are covered with a plate material, and the bow of the hull projects forward from the floating cavity. Underwater observation boat characterized by the following. 2. The observation window of the observation room is also provided at the bottom of the room, and the closing means is provided with a receiving seat around the lower surface of the opening and a flange-like abutment around the bottom of the observation room body. 2. The underwater observation boat according to claim 1, wherein when the observation room body is raised to a high specific position, the flange-shaped abutment is abutted against the receiving seat 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.