JPH0474233B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a high-speed boat, and particularly to a high-speed boat in which a superstructure and a main hull are separated.

[Conventional technology]

Conventionally, in a ship, a superstructure including a bridge, a cabin, etc. is disposed on a main hull, and the main hull and superstructure are integrally formed.

[Problem that the invention seeks to solve]

However, in the above-mentioned ships, the vibration of the main hull during navigation is directly propagated to the superstructure.

Therefore, when the above-mentioned ship is used as a high-speed boat and sails at high speed on a sea surface with waves, the shaking acceleration of the main hull increases, and this shaking acceleration causes collision between the main hull and the wave surface. Since the impact acceleration associated with this is superimposed, the vibration and impact transmitted to the superstructure including the bridge and cabin are extremely large, making the ride uncomfortable and causing significant physiological pain to passengers and crew. .

In addition, it has always been desired to realize not only high-speed boats but also ships with small vibrations in their superstructures.

Therefore, in order to reduce the vibration of the ship, a hydrofoil ship has been proposed and put into practical use, which is equipped with wings on the ship's hull under the water surface, and uses the lift generated by the wings to raise the ship above the water surface and sail at high speed. In order to levitate the entire hull including the main hull and superstructure above the water surface, a high-output, lightweight engine is required, which poses a problem in that the equipment cost becomes significant.

The present invention aims to solve the above-mentioned problems, and aims to provide a superstructure-separated high-speed boat that can reliably and easily reduce vibrations in the superstructure even in waves. do.

[Means for solving problems]

Therefore, the superstructure separated type high-speed boat of the present invention has the following features:
A superstructure having a bridge and a cabin is provided above the main hull having an engine and a propulsion device, separated from the main hull, and the superstructure is connected to the main hull via a shock absorber, and The structure is characterized in that hydrofoils are provided at the lower ends of the legs hanging from both sides of the structure, and both the legs and the hydrofoils are disposed apart from the main hull.

[Effect]

In the above-mentioned superstructure separated type high-speed boat of the present invention,
The superstructure is separated upward from the main hull and connected to the main hull via a shock absorber, and the hydrofoils attached to the lower ends of the legs are suspended from both sides of the superstructure. Since both are located apart from the main hull, during navigation, only the superstructure floats up due to the lift generated by the hydrofoils, and the vibrations of the main hull are absorbed by the above-mentioned shock absorbers. Does not spread to objects.

〔Example〕

Hereinafter, a superstructure separated type high-speed boat as an embodiment of the present invention will be explained with reference to the drawings.
The figure is a partially cutaway side view, Figure 2 is a sectional view taken in the direction of the - arrow in Figure 1, and Figure 3 is a - arrow sectional view in Figure 2.
It is an enlarged cross-sectional view in the direction of arrows.

As shown in FIGS. 1 and 2, a superstructure 2 having a bridge, a cabin, etc. is provided separately from the main hull 1 above the main hull 1, which includes an engine, a propulsion device, etc. (not shown).

The main hull 1 and the superstructure 2 are connected by a buffer device 4, which includes rods 5, 7, buffer springs 6, 9, a support base 8, and a yaw rotation shaft. It consists of 10 mag.

That is, one end of the rod 5 is connected by a pair of connecting pins 5a, 5a arranged horizontally in the width direction of the ship.
The rod 5 is pivotally connected to the lower surface of the center of the upper structure 2, and the other end of the rod 5 is provided with a telescoping end 5b that is extendable in the longitudinal direction, and a pair of telescopic ends 5b are provided between the telescoping end 5b and the main body of the rod 5. Buffer springs 6, 6 are interposed.

Further, at the tip of the telescopic end 5b of the rod 5, a connecting pin 7b is arranged perpendicularly to the connecting pin 5a.
One end of the rod 7 is pivotally attached to the rod 7, and the other end of the rod 7 is connected to the support base 8 via a connecting pin 7b arranged parallel to the connecting pin 5a.

As shown in FIGS. 2 and 3, this support stand 8 is rotatably arranged within the main hull 1, with its central portion supported by a yaw rotation shaft 10 held by a bearing 10'. Buffer springs 9, 9 are provided between each of both ends of the support stand 8 and the inner wall of the main hull 1.
is interposed.

On the other hand, four legs 3 are suspended from the front and rear sides of both sides of the superstructure 2, and hydrofoils 11 are provided at the lower ends of these legs 3 under the water surface. It is designed to generate enough lift to levitate the upper structure 2.

The legs 3 and the hydrofoils 11 are both arranged apart from the main hull 1.

With the above-described configuration, in the superstructure-separated high-speed boat of the present invention, the main hull 1 is propelled by an engine and a propulsion device (not shown) inside the main hull 1 during navigation.

At this time, the structure 2 is propelled together with the main hull 1 via the shock absorber 4, and at the same time, the hydrofoil 1
The main hull 1 is in a floating state due to the lift force generated at the main hull 1.

Therefore, the superstructure 2 is not floated by the buoyant force of the main hull 1, but by the lifting force of the hydrofoils 11, and the main hull 1 and the superstructure 2 are not floated by the buoyant force of the main hull 1, and the main hull 1 and the superstructure 2 do not float due to the buoyancy of the main hull 1, but by the lifting force of the hydrofoils 11. Each of them will be able to perform independent movements.

In addition, in the shock absorber 4, pitching and heaving of the main hull 1 are caused by the connection pins 5a, 7a and the telescopic ends 5b of the rods 5.
Rolling is released by the connecting pin 7b, and yawing is released by rotation of the support base 8 about the yaw rotation axis 10.

Further, if the yawing of the main hull 1 is allowed to escape as it is, there is a risk that the main hull 1 and the legs 3 will come into contact with each other, so the yaw is moderately restrained by the buffer spring 9.

Furthermore, the damping acceleration of the main hull 1 is absorbed by the damping springs 6 and 9.

In this way, the superstructure 2 is attached to the main hull 1 during navigation.
Since the main hull 1 is supported via the legs 3 and the hydrofoils 11 which are separated from the main hull 1, the vibrations and impacts of the main hull 1 are not transmitted to the superstructure 2, and the bridge of the superstructure 2,
This reduces vibrations and shocks in the cabin, etc.

Moreover, in the superstructure separated high-speed boat of the present invention,
Only the superstructure 2 floats up due to the lifting force of the hydrofoils 11,
Since there is no need to levitate the entire hull using hydrofoils, the superstructure can be easily and inexpensively constructed using hydrofoils 11 without using large hydrofoils or lightweight, high-power engines that are required in conventional hydrofoil ships. Thing 2
can be levitated.

〔Effect of the invention〕

As described in detail above, according to the superstructure-separated high-speed boat of the present invention, a superstructure having a bridge and a cabin is provided above the main hull having an engine and a propulsion device, separated from the main hull. The superstructure is connected to the main hull via a shock absorber, and hydrofoils are provided at the lower ends of the legs hanging from both sides of the superstructure. The superstructure has a simple configuration in that it is located apart from the main hull, and the superstructure is supported by legs and hydrofoils that are separated from the main hull, so even during waves, the superstructure is protected against vibrations and shocks. can now be sufficiently reduced, thereby significantly improving riding comfort.

In addition, during navigation, the hydrofoil supports only the above-mentioned structure and does not support the main hull, which has an engine and propulsion device. Compared to the conventional case, the high-speed boat of the present invention has the advantage that the hydrofoil can be significantly downsized, and the engine does not need to be high-output and lightweight.

[Brief explanation of the drawing]

The figures show a superstructure-separated high-speed boat as an embodiment of the present invention, in which Fig. 1 is a partially cutaway side view, Fig. 2 is a sectional view taken along the - arrow in Fig. 1; FIG. 3 is an enlarged sectional view taken along the - arrow in FIG. 2. 1... Main hull, 2... Super structure, 3... Legs,
4...Buffer device, 5...Rod, 5a...Connection pin, 5b...Extensible end, 6...Buffer spring, 7...Rod, 7a, 7b...Connection pin, 8...Support stand,
9...Buffer spring, 10...Yaw rotation axis, 10'...
...Bearing, 11...Hydrofoil.

Claims (1)

[Claims] 1. A superstructure having a bridge and a cabin is provided above the main hull having an engine and a propulsion device, separated from the main hull, and the superstructure is connected to the main hull via a shock absorber, and Hydrofoils are provided at the lower ends of the legs hanging down from both sides of the substructure, and the legs and the hydrofoils are both arranged at a distance from the main hull. Structure-separated high-speed boat.