JP3213421U - Trimaran - Google Patents

Abstract

[PROBLEMS] To provide a trimaran boat that allows a sightseeing boat to experience a new boarding sensation as if enjoying the scenery from the outside of the boat. A trimaran 1 includes a central main float 10, side floats 20 and 30 disposed on both sides of the central float shorter than the central main float and close to the stern B, and both sides of the central main float. It has connection arms 40 and 50 that connect the central main float and the side floats. The upper deck 82 of the central main float and the surface of the connecting arm are continuous with each other, and the ridge 15 provided along the outer casing of the upper deck of the central main float and the front and rear side surfaces of the connecting arm are raised. One loop is drawn by the connecting arm walls 41, 42, 51, 52 and the side float walls 21, 31 rising above the side float, and the wave intrusion to the upper deck and the surface of the connecting arm is suppressed. Is done. [Selection] Figure 1

Description

The present invention relates to a trimaran for the main purpose of sightseeing operated on a near seaway, on a lake, or a dam.

 It is known to increase stability and high speed by increasing the number of hulls such as catamaran and trimarine. For example, according to Patent Document 1, a central main float and two side floats having a length shorter than the central main float are provided, and the side floats are arranged near the stern of the central float and are connected to each other. A trimaran connected to a central float via an arm is disclosed. This shape with this long central float reduces resistance to forward movement, and lateral stability is provided by the stern side float.

Further, Patent Document 2 discloses a trimaran having a hull composed of a central main float and side floats slightly shorter than the central main float, and having a rectangular deck on the float so as to surround all the floats. Has been.

Special Table 2002-506404 Noto 3108847 publication

The connection arm of Patent Document 1 has a wing shape, and generates a ground effect between the lower surface of the connection arm and the water surface to lift the hull, thereby enabling a total weight reduction. On the other hand, in patent document 2, a deck larger than a monohull ship is formed by extending a deck also on a side float.
The present invention provides a trimaran boat that allows a passenger to experience a new boarding sensation on a pleasure boat mainly for sightseeing.

The trimaran according to the present invention has a central main float,
Side floats that are shorter than the central main float and located on both sides of the central float near the stern;
A connecting arm that connects the central main float and the side float at both ends of the central main float;
The upper deck of the central main float and the surface of the connecting arm are continuous with each other,
A saddle provided along the outer shell of the upper deck of the central main float, a connecting arm wall that rises along the front and rear sides of the connecting arm, and a side float wall that rises above the side float And a single loop is drawn, and wave intrusion to the surfaces of the upper deck and the connecting arm surrounded by the loop is suppressed.

According to the present invention, since the invasion of the wave is suppressed within the range surrounded by the anchor, the connecting arm wall, and the side float wall, the passenger can enter the connecting arm, The central main float that extends forward in the direction of travel enters the field of view, so you can enjoy sightseeing as if you were enjoying the scenery from the outside of the ship.

FIG. 1 is a view showing a trimaran, FIG. 1A is a side view, FIG. 1B is a plan view, and FIG. 1C is a front view. FIG. 2 is a diagram showing the internal configuration of the trimaran, FIG. 2A is a side sectional view, FIG. 2B is a diagram showing a navigation deck, FIG. 2C is a diagram showing an upper deck, and FIG. 2D is a diagram showing a lower deck.

In FIG. 1, the trimaran 1 according to the present embodiment includes a central main float 10 and side floats 20, 30 arranged in parallel on both sides of the central main float 10 on the stern B side via connecting arms 40, 50. It is installed. The main main float 10 has a long outer fence in a straight line, and a plurality of ship bottom windows 11 are provided on the lower side surface of the full load water line LWL so that the underwater can be observed from the inside of the ship. Further, the bow F of the central main float 10 has a barbus bow 12 in order to improve the fuel efficiency by reducing the pulling wave and to prevent the pulling wave from affecting the observation from the bottom window. doing. The bow F is further provided with a side thruster 13 for moving the trimaran 1 sideways.

A rectangular keel (or skeg) 14 is provided on the ship bottom of the central main float 10 when viewed from the front. The keel 14 has a tapered shape whose height increases from the bow F toward the stern B, and has a flat bottom surface. By making the bottom surface of the keel 14 flat, the bottom of the ship when it is pulled up to land is prevented.

The side floats 20 and 30 are shorter and smaller in volume than the central main float 10, are arranged near the stern B of the central main float 10, and are connected by connecting arms 40 and 50. The connecting arms 40 and 50 have a trapezoidal shape in a plan view by having a side bottom side of the central main float 10 as a lower base and an upper base shorter than the lower base on the side floats 20 and 30 side. The Trimaran 1 is a pleasure boat and is planned to have a cruise speed of about 12 knots and is relatively slow. At any cruising speed of the Trimaran 1, the submerged portions of the central main float 10 and the side floats 20, 30 are located below the water surface, and the side floats 20, 30 are exclusively of the hull of the Trimaran 1. Its purpose is to contribute to stability. In the figure, reference numeral 92 denotes a hood.

In FIG. 2A, the trimaran 1 has a hierarchical structure including a voyage deck 81, an upper deck 82, and a ship bottom 83, and each level is connected by stairs 61 to 64. In addition, in each figure of FIG. 2, the hatching parts 71-74 have shown the machine room or storage room which a passenger cannot enter. On the upper deck 82, a washroom 84 is provided.

Reference numerals 85, 86, and 87 indicate openings provided in the navigation deck 81 and the upper deck 82 for providing the stairs 61, 64, and 63, respectively. Reference numerals 88 and 89 on the bottom 83 indicate ranges where the stairs 64 and 63 are installed, respectively. The navigation deck 81 provided on the upper deck 82 is provided on the rear side of the snake room 16 as shown in FIG. 2B, and is surrounded by a safety fence 93. Portions 81a and 81b on both sides of the voyage deck 81 project directly above the connecting arm.

In FIG. 2C, the surface of the upper deck 82 and the surfaces of the connecting arms 40, 50 projecting from the both sides of the central main float 10 are continuous with each other (including a level difference that can be easily overcome on foot). On both surfaces of 82 and connecting arms 40 and 50, the passenger can come and go as the same level. A bulwark 15 surrounds the outer ridge of the upper deck 82. The saddle 15 is connected to the connecting arm walls 41, 51, 42, 52 rising along the front and rear side surfaces of the connecting arms 40, 50 at locations where the upper deck 82 and the connecting arms 40, 50 are connected, and The side float walls 21 and 31 rising on the side float are closed between them. Note that a wall 75 that prohibits entry of passengers is provided on the upper deck 82 located immediately above the machine room 71 disposed on the stern B side of the central main float 10.

The side float walls 21 and 31 are provided with doors 22, 23, 32, and 33 that serve as entrances and exits when the trimaran 1 comes in contact with the berth. One loop is drawn by the scissors 15, the connecting arm walls 41, 51, 42, 52, and the side float walls 21, 31 to prevent the wave from entering the area surrounded by the loops.

As shown in FIG. 2D, in the bottom 83, the underwater can be observed from a plurality of bottom windows 11 provided on both sides. The ship bottom window 11 is a double window, and the occurrence of cloudiness is suppressed.

The trimaran 1 may be a metal ship made of steel or aluminum. In addition, when resin is used as in the FRP structure, there is a merit that a streamline shape can be easily formed. However, since the weight is reduced, it is preferable to arrange a metal plate serving as a weight on the ship bottom 83 side by side.

According to the trimaran 1 according to the present embodiment, a passenger can move freely in a range surrounded by the anchor 15, the connecting arm walls 41, 51, 42, 52, and the side float walls 21, 31. Therefore, the passenger can enter on the connecting arms 40 and 50, and the central main float 10 extending forward in the traveling direction enters the field of view, so that it is as if enjoying the scenery from the outside of the ship. You can enjoy sightseeing.

In addition, since it is possible to enter the voyage deck 81 up to the range immediately above the connecting arms 40 and 50, it is possible to enjoy sightseeing as if enjoying the scenery from the outside of the ship.

In the above embodiment, the upper deck 82 located immediately above the machine room 71 arranged on the stern B side of the central main float 10 is provided with a wall 75 to prohibit entry of passengers. The height of the upper deck 82 may be changed in the range directly above the machine room 71 without making the upper deck 82 a deck having a uniform height throughout. Further, instead of one rudder 91 for one screw 90, two rudders may be arranged in parallel to improve operability. Unlike the anchor 15, the connecting arm walls 41, 51, 42, 52, and the side float walls 21, 31, the safety fence 93 of the voyage deck 81 is composed of a column and a wire. Any device having a function of preventing the customer from falling can be used. Further, a lower deck may be provided under the upper deck 82 to form a multi-layered hierarchy.

1 Trimaran 10 Central Main Float 11 Ship Bottom Window 12 Barbus Bau 13 Side Thruster 14 Keel 15 １６ 16 Steering Room 20, 30 Side Float 21, 31 Side Float Wall 22, 23, 32, 33 Door 40, 50 Connection Arm 41, 51, 42, 52 Connecting arm wall 61-64 Staircase 71 Machine room 75 Wall 81 Navigation deck 81a, 81b Part 82 Upper deck 83 Bottom 84 Washroom 90 Screw 91 Rudder 92 Top 93 Safety fence B Stern F Prow LWL Full load water line

Claims (3)

A central main float,
Side floats that are shorter than the central main float and located on both sides of the central float near the stern;
A connecting arm that connects the central main float and the side float at both ends of the central main float;
The upper deck of the central main float and the surface of the connecting arm are continuous with each other,
A saddle provided along the outer shell of the upper deck of the central main float, a connecting arm wall that rises along the front and rear sides of the connecting arm, and a side float wall that rises above the side float A trimarine characterized in that one loop is drawn and wave intrusion to the surfaces of the upper deck and the connecting arm surrounded by the loop is suppressed. The three-piece connecting device according to claim 1, wherein the connecting arm has a trapezoidal shape in which a side bottom side of the central main float is a lower bottom and the side float side is an upper bottom shorter than the lower bottom in a plan view. A shipwreck. A voyage deck is provided on the upper deck, the voyage deck is surrounded by a safety fence, and a part of each side of the voyage deck projects directly above a connecting arm. The trimaran according to 1.