JPH0829749B2 - Small water vehicle - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a small one-person water vehicle capable of preventing the propulsion unit from being flooded even when it is capsized with a simple structure.

(Prior Art) Recently, there has been proposed a watercraft that is a single-seat hull that rides on a board as it floats on a board as a watercraft. It is desirable that this water vehicle be as small and simple as possible in terms of handling such as transportation. The above water vehicle is equipped with a propulsion device and may be capsized in order to perform various motions such as sailing and water play on the water surface.

In the conventional structure, the intake pipe for air to the propulsion unit is equipped with a pipe with a height such that the upper end opens at the upper part of the hull near the propulsion unit. The invasion of water was inevitable.

(Object of the Invention) The present invention has been made to solve such a conventional problem, and has a simple structure, and is not only used while traveling,
(EN) Provided is a water vehicle capable of preventing the propulsion machine from being flooded even when the vehicle capsizes.

(Structure of the Invention) The present invention relates to a small water vehicle having a single-seat plate-shaped hull, which is provided with a propulsion device projecting downward from the hull, and the hull includes an air tank open to the upper surface of the hull. Is installed at a position higher than the draft surface when the ship is on board, an air intake pipe with one end opening inside this air tank is guided to the propulsion device, and a drain pipe guided to the bottom of the ship is attached to the lower part of the air tank. The interior of the air tank is divided into a first space and a second space by a partition plate, the first space communicates with the opening of the air tank, and the second space serves as the first space. A gap is formed between the lower end of the partition plate and the tank bottom so that only the bottom of the air tank communicates with the bottom of the tank. The partition plate is constructed so as not to exceed it.

In the above configuration, the tank for air supplied to the propulsion unit is installed at a position higher than the draft surface, this tank is open on the upper surface of the hull, has a drainage port on the bottom of the ship, and the inside of the tank is partitioned. Since it is divided into the first space and the second space by the plate, it is possible to supply air to the propulsion unit even during overturning, and the drainage inside the tank is excellent. However, since the propulsion device does not stop, it is possible to immediately start sailing by raising the hull even when the ship capsizes.

(Embodiment) In FIGS. 1 and 2, a boat body 1 is formed into a flat plate shape, and an upper surface thereof is smoothly inclined rearward so that a person 10 grips a handle 14 and crawls on it. It is configured to ride. A rudder 4 is attached to the stern part, and a propulsion device 3 is attached to the lower part of the hull 1 so as to project downward. An air tank (air intake) 6 for supplying air to the propulsion unit 3 is provided at a position higher than the draft surface 2 in the boarding state.

The hull 1 has an upper skin 11 and a lower skin 12 made of FRP,
It consists of a core material 13 made of foamed material covered with them,
The hull 1 is formed by combining these with preformed concave portions for the peep window 25 and the like. 32 is a starter for the propulsion machine.

The air tank 6 has an opening 6a on the upper side, and a cover 64 that opens only rearward is attached on the opening 6a. Further, an air intake pipe 60 having one end opened in the air tank 6 is guided to the propulsion device 3, a drain pipe 62 is connected to a lower portion of the air tank 6, and a lower end portion of the drain pipe 62 is rearward at a ship bottom. An opening drainage portion 61 is attached. The interior of the air tank 6 is divided into a first space 68 and a second space 69 by a partition plate 66, the first space 68 communicates with the opening of the air tank, and the second space 69 is A gap is formed between the lower end of the partition plate 66 and the bottom of the tank so that only one space 68 communicates with the bottom of the air tank.

A fuel tank 30 is installed in the hull 1 above the propulsion unit 3 so that fuel can be supplied from a fuel filler port 31 on the hull 1.

Then, while the boat is traveling, the person 10 operates the rudder 4 with his / her foot and also shifts the body backward so that the seabed can be seen through the sight window 25. At the front end of the hull 1, a fender 5 made of a floating material such as foam or air bag is attached.
The outer surface of the fender 5 is smoothly continuous with the outer surface of the hull 1, and the fender 5 and the hull 1 form a bow portion.

In the above structure, as shown in FIG.
When the user crawls up and drives the propulsion device 3, the hull 1 travels on the water surface, and by operating the rudder 4, the hull 1 can turn in any direction. This rudder 4
As shown in FIG. 2, the operation of is only necessary to move the rudder protrusion 45 to the left and right with the foot while the person 10 is lying on the hull 1, and the operation is easy. Further, since the opening 6a is covered by the cover 64 on the front side and the upper side, it is prevented that the water to be launched onto the hull 1 at the time of sailing enters. Also, if you capsize while running and run by inertia, the opening 6a
To a negative pressure due to the water flow, which prevents flooding. Furthermore, since the drainage part 61 is open rearward, the water flow due to the running of the hull 1 reduces the pressure,
The drain in the air tank 6 is drained well.

It should be noted that the drainage section 61 may be arranged behind the propulsion unit 3 in order to drain the drainage section 61 more efficiently.

When the hull 1 capsizes and the person 10 leaves the hull, the hull 1 floats at the draft shown in FIG. 3, and in this state, the water 20 enters the air tank 6 through the opening 6a, Also drain
Air enters through 61 and the drain pipe 62. Therefore, the water level in the air tank 6 coincides with the draft surface 2, and since the partition plate 66 is configured so that this water level does not exceed the partition plate 66, the water 20 flows into the first space 68 in the air tank 6. It exists only in the inside, and there is little in the second space 69. Therefore, the propulsion device 3 is supplied through the drainage portion 61, the drain pipe 62, the second space 69, and the air intake pipe 60, and the propulsion device 3 is not stopped even in the overturned state.

When the hull 1 is raised from the overturned state, the water 20 in the air tank 6 is discharged by its own weight through the drain pipe 62 and the drainage portion 61 as shown in FIG. 4, and the state shown in FIG. As the ship continues to operate, it is immediately ready for navigation.

(Effects of the Invention) As described above, according to the present invention, the tank for air supplied to the propulsion unit is installed at a position higher than the draft surface, and this tank is opened on the upper surface of the hull, and the drain port is formed on the bottom of the ship. It is formed so that the inside of the tank is divided into a first space and a second space by a partition plate, and it is possible to supply air to the propulsion machine even in the event of capsizing. It is very convenient to handle.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of the present invention, FIG. 2 is a central longitudinal sectional view of the same, FIG. 3 is a central longitudinal sectional view of a hull in a capsized state, and FIG. It is a central longitudinal cross-sectional view of the state. 1 ... Hull, 3 ... Propulsor, 4 ... Rudder, 6 ... Air tank, 6a ... Opening, 61 ... Drainage, 62 ... Drain pipe, 66
...... Partition plate, 88 …… First space, 69 …… Second space.

Claims (1)

[Claims] 1. A small water vehicle having a plate-shaped hull for one passenger, which is provided with a propulsion device projecting downward from the hull,
On the hull, an air tank that opens to the top of the hull is installed at a position higher than the draft surface when the ship is on board, and an air intake pipe with one end opening inside this air tank is guided to the propulsion unit, and the lower part of the air tank Has a drain pipe attached to the bottom of the ship,
The inside of the air tank is divided into a first space and a second space by a partition plate, the first space communicates with the opening of the air tank, and the second space is the first space and the air. A gap is formed between the lower end of the partition plate and the tank bottom so that only the bottom of the tank communicates with the bottom of the tank. A small water vehicle characterized in that the partition plate is constructed so as not to exceed it.