JP3158246B2 - Underwater observation boat - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an underwater observation boat.

[0002]

2. Description of the Related Art There is already a double-hull type ship in which two or three drainage bodies are arranged in parallel in the direction of travel, and the plurality of drainage bodies are integrally connected via a connecting member. are doing. This type of ship tends to increase the restoring force against roll and easily form a wide deck.

[0003]

SUMMARY OF THE INVENTION The present invention utilizes the above-mentioned advantages of a double-hulled ship, and provides an underwater observation boat capable of safely boarding a relatively large number of passengers and providing an effective underwater observation. The purpose is to:

[0004]

In order to achieve the above object, according to the present invention, an observing drainage body provided with an underwater observing room is arranged at right and left sides at a fixed distance, and these observing drainage bodies are provided. For each outside of a certain distance,
A relatively small-volume floating cavity with the same length parallel to the observation drainage fuselage is provided, and the whole is integrally connected via a connecting member so as to be symmetrical to form a four-hull ship. The four-hulled vessel including the floating hulls shall always be located underwater together with the drainage hulls for observation, and shall include the drainage hulls for each observation and the floating hulls at the same height as the upper surface of the connecting member. An upper deck is formed so as to cover the entire upper surface, and the bow at the bow of each observation drainage fuselage projects forward from the floating airframe and the upper deck.

The left and right observation drainage bodies and the two floating airframes provide a large restoring force against rolling and allow a wide deck to be formed, so that a relatively large number of passengers can board safely. Becomes Also, when the floating airframe is flooded by the observation drainage fuselage, it compensates for buoyancy to prevent excessive hull tilting and sinking, and when an obstacle approaches from the side of the hull, it collides with the obstacle and Restricts objects from hitting the viewing window and prevents damage to the viewing window.

Also, the provision of the left and right observation drainage bodies makes it possible to provide observation windows on these opposing sides, and through these observation windows,
Passengers in each observation drainage body will be able to see the passengers in the observation drainage body on the other side across the water.

In the present invention, when the propulsion means is provided in each of the observation drainage bodies, the turning displacement of the hull can be quickly performed with a small radius.

[0008]

1 to 5 show an underwater observation boat according to the present invention. FIG. 1 is a side view, FIG. 2 is a longitudinal sectional view in the left-right direction, FIG. 3 is a plan view showing an upper deck, FIG. 4 is a plan view of a submerged portion, and FIG. 5 is a plan view of a promenade deck.

In the figure, reference numerals 1A and 1B denote a pair of left and right observation drainage bodies provided with an underwater observation room, 2A and 2B.
Is a relatively small-volume floating body provided outside each of the pair of drainage bodies 1A and 1B. These four torso 1
A, 1B, 2A, and 2B are integrally formed by connecting their front and rear portions with a box-shaped connecting member 3.

At this time, the floating cavities 2A and 2B can be made to be about a fraction of the size of the observation drainage bodies 1A and 1B. It is good to generate large buoyancy.

Each of the underwater observation rooms 4A and 4B is formed in the submerged portion of the corresponding observation drainage body 1A or 1B.
Observation windows 5 for viewing the underwater from inside A and 4B are arranged. At this time, the observation window 5 is made to protrude below the bottom surfaces of the floating cavities 2A, 2B by an appropriate dimension h so that the field of view from the observation window 5 is not obstructed by the floating cavities 2A, 2B.

At the same height position as the upper surface of the connecting member 3, FIG.
The upper deck 6 is formed so as to surround the outer periphery of the four bodies 1A, 1B, 2A, 2B as shown in FIG. At this time, 7 is a stair connecting the upper deck 6 and the underwater observation rooms 4A and 4B.

On the upper side of the upper deck 6, there is provided a walking deck 8 covering the entire width as shown in FIG. This promenade deck 8
Is formed in a partial length range of the upper deck 6, and a steering room 9 is provided at a front portion on the promenade deck 8.

10 is a stair connecting the upper deck 6 and the promenade deck 8,
Reference numeral 11 denotes an awning covering the upper part of the promenade deck 8, reference numeral 12 denotes a mast, reference numeral 13 denotes a windlass, and reference numeral 14 denotes a bollard.

An engine room 15 equipped with an engine is provided at the rear of each observation drainage body 1A, 1B.
5, a propulsion device 16 rotated by the engine
Is provided. The propulsion device 16 is turned by rotating the steered wheels in the steering room 9.

An example of use and operation of the underwater observation boat configured as described above will be described. When mooring at the quay, the floating cavities 2A and 2B are berthed. With this, the underwater observation room 4A,
Since the observation window 5 of 4B is secured at a certain distance from the quay,
Damage due to contact with the quay is prevented.

At the time of boarding, the operator first gets on the upper deck 6 and goes through the stairs 7 and 10 to the underwater observation rooms 4A and 4B or the promenade deck 8.
Move up.

The navigation is performed by rotating the two right and left propulsion devices 16 and 16, and the normal course change is performed by changing the direction of the propulsion devices 16 and 16. The two right and left propulsion devices 16 can also generate reverse propulsion forces, thereby enabling quick turning with a small radius. At the time of underwater observation, look at the underwater from the observation window 5.

In this embodiment, four bodies 1A, 1
The provision of B, 2A, and 2B contributes to increasing the restoring force against the roll of the hull, and when the restoring force is large, a large lateral inclination of the hull is suppressed, and the ride comfort and safety of passengers are reduced. As a result, the situation in which the observation window 5 is exposed on the water surface due to the hull inclination is prevented, and the observation from the observation window 5 is not impaired.

An upper deck 6 formed by connecting the four bodies 1A, 1B, 2A, and 2B with the connecting member 3 and surrounding the outer periphery thereof provides a passenger with a wide boarding place. The formation of the wide deck and the increase in the above-mentioned restoring force enable many passengers to board.

In addition, the hull composed of the four hulls 1A, 1B, 2A and 2B can easily increase the draft of the observation drainage hulls 1A and 1B as compared with a single hull having the same displacement and the same restoring force. As a result, many observation windows 5 can be formed at a deep position below the water surface on the side of the hull, and through this observation window 5, a large number of passengers can view the water deep underwater at the same time.

The existence of the floating airframes 2A and 2B reduces the lateral inclination of the hull when the observation window 5 is broken and the one of the observation drainage bodies 1A or 1B is flooded. Even if it is flooded in the observation drainage bodies 2A and 2B, it will prevent sinking. In addition, these floating cavities 2
Since A and 2B act as wave absorbers, the floating cavity 2
Even if the waves generated outside of A and 2B are large, the waves between the floating cavities 2A and 2B and the drainage bodies for observation 1A and 1B are generated outside the floating cavities 2A and 2B. It becomes smaller than the waves that are present, and provides a favorable view environment particularly from the view window 5 outside the view drainage bodies 1A and 1B.

Further, a pair of left and right observation drainage bodies 1A, 1
The fact that the underwater observation rooms 4A and 4B are formed in B and the observation windows 5 are provided opposite the observation drainage bodies 1A and 1B is that the passengers in the left and right underwater observation rooms 1A and 1B face each other underwater observation. This allows a passenger in one underwater observation room 1A or 1B to take a picture of a passenger who is underwater observation in the other underwater observation room 1B or 1A through the underwater, The fun of the outlook will increase.

[0024]

According to the present invention constructed as described above, more passengers can enjoy the underwater view more happily and safely as compared with a monohull, catamaran, or trimaran with the same displacement. It will be.

Specifically, since four bodies are provided, the restoring force against the roll is increased, and the lateral inclination hardly occurs.
In addition, the stability of the hull against waves is improved and seasickness is prevented.Moreover, a wide deck can be secured, and the depth of the draft is increased, so that many observation windows are formed at a deep position below the water surface. Of passengers will be able to see underwater at the same time.

Further, since the floating cavities exist outside each of the left and right observation drainage bodies, the influence of waves on the observation window is reduced and the observation environment is improved. This makes it difficult for the hull to tilt sideways and prevents sinking.

Further, since a pair of left and right observation drainage bodies are provided, the passenger in one drainage body can see the passenger's perspective state in the other drainage body through the underwater, and photograph this state as necessary. It is also possible to do.

According to the second aspect, the hull can be quickly turned with a small radius, and a meaningful underwater view can be performed.

[Brief description of the drawings]

FIG. 1 is a side view of an underwater observation boat according to the present invention.

FIG. 2 is a left-right longitudinal sectional view of the underwater observation boat.

FIG. 3 is a plan view showing an upper deck of the underwater observation boat.

FIG. 4 is a plan view of a submerged portion of the underwater observation boat.

FIG. 5 is a plan view of a walking deck of the underwater observation boat.

[Explanation of symbols]

 1A, 1B Observation drainage fuselage 2A, 2B Floating airframe 3 Connecting member 4A, 4B Underwater observation room 5 Observation window 16 Propulsion device

Continuation of the front page (56) References JP-A-7-246990 (JP, A) JP-A-3-186494 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B63C 11 / 49 B63B 1/12 B63B 35/73

Claims (2)

(57) [Claims] 1. An observing drainage body provided with an underwater observing room is arranged on the left and right at a certain distance from each other.
A relatively small-volume floating cavity with the same length parallel to the observation drainage fuselage is provided, and the whole is integrally connected via a connecting member so as to be symmetrical to form a four-hull ship. The four-hulled vessel including the floating hulls shall always be located underwater together with the drainage hulls for observation, and shall include the drainage hulls for each observation and the floating hulls at the same height as the upper surface of the connecting member. An underwater observation boat, wherein an upper deck is formed so as to cover the entire upper surface, and a bow at the bow of each observation drainage fuselage projects forward from the floating airframe and the upper deck. 2. The underwater observation boat according to claim 1, wherein a propulsion means is provided in each of the observation drainage bodies.