JPS6215159A - Side wall type aircushion-craft with submerged body - Google Patents

Abstract

PURPOSE:To make it possible to restrain the pitching and rolling of a hull during sailing in a wavy condition to satisfy the rectilinear stability of the hull, by providing torpedo shape submerged bodies to the lower ends of right and left side wall of the hull, respectively. CONSTITUTION:An aircushion section A is surrounded by right and left side walls 1, 1 and front and rear skirts 3, 4. Torpede shape submerged bodies 2, 2 are secured to the lower ends of right and left side walls 1, 1.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an air cushion boat having an air cushion section provided at the bottom of the boat, and in particular, the present invention relates to an air cushion boat having an air cushion section provided at the bottom of the boat. The present invention relates to a side wall type air cushion watercraft with a submerged body, which has a side wall for forming.

[Conventional technology]

Generally, in an air cushion boat, it is necessary to control the motion in waves, and techniques have been developed to provide an air louver device for controlling the covelin air and a fin for pitching control.

[Problem that the invention seeks to solve]

By the way, the conventional air looper device for controlling cushion air and the fin for pitching control as described above each have a movable part, which makes the structure complicated and increases the cost.

The present invention aims to solve the above problem α, and provides a side wall with a submerged body that can reduce the movement of the hull in waves without requiring devices with complicated moving parts. The purpose is to provide a type air cushion boat.

Means for Solving Problem c] For this reason, the sidewall type air cushion boat with a submersible body of the present invention is surrounded by left and right sidewalls extending downward on both sides of the hull, a front skirt, and a rear skirt. The torpedo-shaped submerged body is provided at the lower end of each of the left and right side walls.

[For production]

In the above-mentioned side wall type air cushion boat with a submersible body of the present invention,
Since torpedo-shaped submerged bodies are attached to the lower ends of the left and right side walls, these torpedo-shaped submerged bodies receive fluid force from the open water when the ship is cruising, and this fluid force provides straight-line stability for the ship. At the same time, the ship's motion is suppressed.

〔Example〕

Hereinafter, a side wall type air cushion boat with a submerged body as an embodiment of the present invention will be explained with reference to the drawings. Fig. 1 is a perspective view of the watercraft as seen diagonally from below, Fig. 2 is a side view of the watercraft, and Fig. 3 is a side view of the watercraft.
The figure is a front view of the stern.

As shown in Figures 1 to 3, side walls 1, 1 are provided on both sides of the hull S to extend downward, and a front skirt 3 is provided at the bottom of the bow, and a front skirt 3 is provided at the bottom of the stern. is provided with a rear skirt 4.

The side wall 1 is made of a rigid material such as a metal material, and the front skirt 3 and rear skirt 4 are both made of an elastic material such as a rubber material or a plastic material.

These left and right side walls 1, 1. An air cushion part A is formed so as to be surrounded by the front skirt 3 and the rear skirt 4.

Compressed air is supplied to the air cushion section A from a near compressor (not shown) inside the ship.
This pushes up the hull S, giving it the function of an air cushion boat.

Further, in the air cushion boat as an embodiment of the present invention, torpedo-shaped submerged bodies 2, 2 are attached to the lower ends of the left and right side walls 1.1, respectively.

Note that as the propulsion device, an appropriate device such as an aerial propeller or a water jet device (not shown) is used.

Since the sidewall type air cushion boat with a submersible body as an embodiment of the present invention is constructed as described above, when the boat sets sail, compressed air is first injected into the air cushion section A, and thereby The hull S rises from the state of the waterline W' at anchor to the state of the waterline W.

When the vehicle is started by a propulsion device (not shown), the front skirt 3 is bent and tilted rearward, and the lower end of the front skirt 3 is shallowly immersed in seawater.

Therefore, wave-making resistance is significantly reduced,
You will be able to easily navigate at high speeds.

In addition, a torpedo-shaped submerged body 2 provided at the lower end of both side walls 1, 1,
2 receives fluid force from the outside water while sailing, so this fluid force ensures the straightness of the hull S,
Particularly when the hull S is traveling at high speed, not only great stability is obtained, but also hull sway is sufficiently suppressed.

Nao, this torpedo-shaped submerged body 2, unlike the submerged part of a so-called semi-submersible catamaran, does not need to have enough buoyancy to support the weight of the entire hull S, so a small volume one is sufficient. be. Therefore, the increase in hull resistance due to the torpedo-shaped submerged body 2 is slight, and the propulsion efficiency of the hull S does not deteriorate.

In this way, the sidewall type air cushion boat with a submerged body of this embodiment can achieve sufficient seaworthiness without requiring the conventional e-fluva device with complicated moving parts, pitching control fins, etc. become.

〔Effect of the invention〕

As described in detail above, according to the side wall type air cushion boat with a submersible body of the present invention, the hull is surrounded by the left and right side walls extending downward, the front skirt, and the rear skirt on both sides of the hull. It has an extremely simple configuration, with a formed air cushion section and a torpedo-shaped submerged body attached to the lower end of each of the left and right side walls, which not only sufficiently suppresses the ship's vibration when sailing in waves, but also Since the straight-line stability of the hull can be achieved, seaworthiness is greatly improved, and it can also contribute to improved ride comfort.

[Brief explanation of the drawing]

Figures 1 to 3 show a side wall type air cushion boat with a submerged body as an embodiment of the present invention. Figure tjSi is a perspective view of the watercraft as seen diagonally from below, Figure 2 is a side view of the boat, and Figure 3 is a side view of the boat. is a front view of the stern. 1. Side wall, 2. Torpedo-shaped submerged body, 3. Front skirt, 4. Rear skirt, A. Air cushion part, S.
・Hull, w, w' ・・Waterline. Sub-Agent Patent Attorney Yoshihiko Iinuma Figure 1

Claims (1)

[Claims] Air cushion portions are formed on both sides of the hull to be surrounded by left and right side walls extending downward, a front skirt, and a rear skirt, and a torpedo-shaped submerged body is provided at the lower end of each of the left and right side walls. A side wall type air cushion boat with a submerged body, characterized by being equipped with.