JPS6052037B2 - swimming boat - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides that a small swimming boat, in which the operator lies on his stomach on the top of the hull and operates the boat with his lower body immersed in the water, is capable of reducing the size of the hull in normal use. Since the structure is such that parts of the vessel are submerged under water, it is essential to have a flood prevention mechanism to prevent water from flooding into the propulsion engine installed inside the hull, resulting in the engine stopping or malfunctioning. .

Conventional methods for preventing flooding include installing a snorkel that communicates with the inside of the engine and protruding high above the hull, or allowing a small amount of water to enter the hull and draining this water using a pump installed inside the hull. There are known ways to drain water to the outside.

However, with the snorkel method, there is a risk of injury to humans if they or the ship are caught in high waves, and if the ship is tilted and the snorkel becomes horizontal, it may be flooded, and the forward visibility may be impaired. to be a hindrance,
The synorkel is a long protrusion, has low mechanical strength, and has drawbacks such as being easily damaged in a collision or the like.

On the other hand, the method of draining water using a pump utilizes the output of the engine, so in this type of ultra-small swimming port, the load on the engine increases, the propulsive output is significantly reduced, and the inside of the hull is It has drawbacks such as significantly deteriorating the corrosion resistance of certain types of equipment.

Therefore, the purpose of the present invention is to provide a safe and reliable ship that does not have any adverse effect on the engine even if the hull is hit by waves, can reliably drain out water that has entered the ship, does not obstruct visibility or pose any danger to maneuvering. high,
To provide a swimming boat which is light and compact, has excellent maneuverability, has a small engine load during drainage operation, and does not cause a decrease in propulsive output.

In order to achieve the above object, the swimming boat according to the present invention has the following features:
An air supply pipe that communicates with an outside air intake port provided at the top of the hull, an empty space that communicates with the air intake pipe and is defined inside the hull, and an air supply pipe that connects to the engine that opens at a higher position than the bottom of the air space. an air supply path;
a water reservoir provided inside the hull at a position lower than the bottom of the empty chamber for introducing and storing water that has entered the empty chamber; and a drainage mechanism that discharges the water that has entered the water reservoir to the outside of the hull; The mechanism includes an exhaust introduction pipe that is branched from the exhaust pipe of the engine and communicates with the water reservoir chamber, a valve that is provided in the middle of the exhaust introduction pipe and can be operated from the outside, and a valve that is provided so as to communicate from the water reservoir chamber to the outside of the hull. and a drain pipe for discharging the water stored in the water reservoir to the outside of the hull by the exhaust pressure of the exhaust gas introduced into the water reservoir through the exhaust gas introduction pipe when the valve is opened. .

DESCRIPTION OF THE PREFERRED EMBODIMENTS The content of the present invention will be specifically explained in detail below with reference to the accompanying drawings, which are examples.

FIG. 1 is a partially broken sectional view of a swimming boat according to the present invention.

In the figure, 1 is a hull made of synthetic resin or the like.
Handles 2 for operation are provided on the left and right sides of the bow of the hull 1, and a smoothly curved catch 3 is provided on the rear upper surface to receive the chest width of the operator. In order to do this, a lid 5 is attached to the bow side of the hull 1, the front of which is tightly closed to the hull 1, and the outside air inlet 4 is provided at the rear. The air supply pipe 6 is opened.

The lower end 6a of this air supply pipe 6 is determined so as to be located above the water line when the hull 1 capsizes. 7 is a vacant room defined inside the hull 1.

The lower end 6a of the air supply pipe 6 is opened inside the cavity 7, and therefore the cavity 7 communicates with the outside air inlet 4 through the air supply pipe 6. Reference numeral 8 denotes a float valve installed at a position higher than the bottom of the empty chamber 7 to open and close an air supply path 10 to the three engines 9, which is provided through the side plate 7a forming the empty chamber 7. be.

The float valve 8 includes a float portion 8b connected in an L shape via an arm 8a, and a valve 8c, and the arm 8a is connected to a side plate 7a.
The structure is such that it can be rotated freely. This float valve 8 is provided to prevent water that has entered the empty chamber 7 through the outside air inlet 4 and the air supply pipe 6 from entering the engine 9 through the air supply path 10. Yes, but you can omit it. The intake pipe 9a of the engine 9 is arranged with a slight gap from the air supply path 10 to prevent water from directly entering the intake pipe 9a even if the float valve 8 malfunctions. There is.

11 is a water storage chamber provided at the bottom of the hull 1.

The water reservoir chamber 11 is constituted by, for example, a tank, and is provided at a position lower than the bottom of the cavity 7. This water reservoir chamber 11 and the empty chamber 7 are communicated with each other via a communication pipe 12, so that water that enters the empty chamber 7 immediately flows into the water reservoir chamber 11 and flows into the interior thereof. It will be temporarily stored. A check valve 13 is provided in the communication pipe 12 to prevent water once stored in the water reservoir chamber 11 from flowing back into the empty chamber 7 due to the inclination of the hull 1 or the like. 14
is a drain pipe for discharging water stored in the water storage chamber 11 to the outside of the ship.

The opening position of the drain pipe 14 is set at a position higher than the water line during normal use, and is set so as to be located below the water line when the hull 1 capsizes. This drain pipe 14, together with the water reservoir chamber 11 and an exhaust gas introduction mechanism 15 to be described next, constitutes a drainage mechanism that discharges the water stored in the water reservoir chamber 11 to the outside of the boat. The exhaust introduction mechanism 15 has a structure in which an exhaust introduction pipe 15a branched from the exhaust pipe 9b of the engine 9 is communicated with the water storage chamber 11, and a valve 15b that can be operated from the outside is provided in the middle of the exhaust introduction pipe 15a. It is becoming.

When the exhaust gas introduction mechanism 15 as described above is provided, by opening the valve 15b, exhaust gas from the engine 9 is transferred to the exhaust pipe 9b.
, is introduced into the water storage chamber 11 through the exhaust gas introduction pipe 15a, and the water stored in the water storage chamber 11 can be discharged to the outside from the drain pipe 14 by the exhaust pressure. The operation of draining water becomes very easy.

When exhaust pressure is applied to the water reservoir chamber 11, the check valve 13 is closed by the pressure, so that the stored water does not flow back into the chamber 7. When the valve 15b is closed, the exhaust gas from the engine 9 is drained out of the boat via the exhaust pipe 9b1, the valve 16, and the exhaust pipe 9c.

Note that the valve 15b may be a three-way valve, and the exhaust gas from the exhaust pipe 9b may be branched into the exhaust introduction pipe 15a and the exhaust pipe 9c.

As mentioned above, the advantage of draining the water stored in the water storage chamber 11 using exhaust gas is that the propulsive force of the engine 9 is not reduced during drainage, and there is no need for a drainage pump or the like. Therefore, it is possible to create a small, lightweight, and inexpensive product.
The drainage mechanism is simple, and the drainage operation can be performed simply by operating the valve, making the drainage operation easy.

In the figure, 17 is a propulsion screw, and 18 and 19 are engine 9.
This is a water supply and drainage pipe for water cooling. FIG. 2 is a diagram illustrating the operation of the swimming boat according to the present invention. As shown in the figure, the operator P places his chest and abdomen on the seat 3 of the front body 1, lies on his stomach, and drives the vehicle while gripping the steering wheel 2. An accelerator mechanism is connected to the handle 2, and by operating the accelerator mechanism, the swimmer can freely swim while adjusting the speed. In this case, since there is no obstacle like a snorkel, the machine is very good and there is no operational danger. Also, if you are hit by a wave while swimming, water will enter the empty chamber 7 from the air supply pipe 6, but the air supply path 10 to the engine 9 is provided at a higher position than the bottom of the empty chamber 7. Therefore, an accident in which water enters the inside of the engine 9 can be almost completely prevented.

Intrusion of water into the engine 9 can be more reliably prevented by the float valve 8. Further, since the water storage chamber 11 is provided at a position lower than the bottom of the chamber 7, and water does not remain in the chamber 7, it is possible to completely prevent water from entering the inside of the engine. In addition, since it has a drainage mechanism that uses the exhaust pressure of the engine 9 to discharge water that has entered the water reservoir chamber 11 to the outside of the hull, the capacity of the water reservoir chamber 11 can be small, which is especially important for this type of swimming boat. This makes it possible to make the hull smaller and lighter, increasing maneuverability.

Moreover, this drainage mechanism 15 includes an exhaust introduction pipe 15a that is branched from the exhaust pipe 9b of the engine 9 and communicates with the inside of the water storage chamber 11.
A valve 15b is provided in the middle of the exhaust gas introduction pipe 15a and can be operated from the outside, and a valve 15b is provided so as to communicate from the inside of the water reservoir chamber 11 to the outside of the hull. Since the structure includes a drain pipe 14 that discharges the water stored in the water storage chamber 11 to the outside of the hull by the exhaust pressure of the exhaust gas of the introduced engine 9, when drainage is necessary, the valve 15 is opened from the outside. Drainage can be done by simply opening the valve. Therefore, the drainage operation becomes very simple, and at the same time, the load on the engine during drainage can be reduced, and a decrease in the propulsion output can be prevented. As described above, the swimming boat according to the present invention includes an air supply pipe that communicates with an outside air inlet provided in the upper part of the hull, a vacant room that communicates with the air supply pipe and is defined inside the hull, and an air supply passage to the engine opened at a position higher than the bottom of the chamber; a water reservoir chamber provided inside the hull at a position lower than the bottom of the chamber for introducing and storing water that has entered the chamber; and the water reservoir. and a drainage mechanism for discharging water that has entered the cabin to the outside of the hull, and the drainage mechanism includes an exhaust introduction pipe that is branched from the exhaust pipe of the engine and communicates with the water reservoir chamber, and an exhaust introduction pipe that is provided in the middle of the exhaust introduction pipe. A valve that can be operated from the outside is provided to communicate from the water reservoir chamber to the outside of the hull, and when the valve is opened, the exhaust pressure of the exhaust gas introduced into the water reservoir chamber through the exhaust gas introduction pipe causes air to flow into the water reservoir chamber. The system is equipped with a drainage pipe that discharges the accumulated water to the outside of the hull, so even if the hull is hit by waves, it will not have any negative effect on the engine, and the intruding water can be reliably discharged, making it possible to maintain visibility. To provide a swimming boat that is safe and highly reliable without obstruction or danger of maneuvering, is light and compact, has excellent maneuverability, has a small engine load during drainage operation, and does not cause a reduction in propulsive output.

In addition, in the event of a capsize, the air supply pipe will open into the empty space at a position L above the water line, and the drain pipe will open into the water at a position below the water line, so water will not enter the hull. Effects such as being able to prevent this can also be obtained.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway sectional view of a swimming boat according to the present invention, and FIG. 2 is a diagram illustrating its use. 1...hull, 4...outside air inlet, 6...
... Air supply pipe, 7 ... Vacant room, 8 ...
・Float valve, 9... Engine, 10...
- Air supply path, 11...Water chamber, 14...Drain pipe, 15...Exhaust introduction mechanism.

Claims (1)

[Claims] 1. An air supply pipe that communicates with an outside air intake port provided at the top of the hull, a void space defined inside the hull that communicates with the air supply pipe, and a space inside the void space that is located at a position higher than the bottom of the void space. an air supply passage to the engine that communicates with the engine; a water reservoir chamber provided inside the hull at a position lower than the bottom of the cavity for introducing and storing water that has entered the cavity; a drainage mechanism for discharging the water to the outside; the drainage mechanism includes an exhaust introduction pipe that is branched from the exhaust pipe of the engine and communicates with the water reservoir chamber;
a valve that is provided in the middle of the exhaust gas introduction pipe and can be operated from the outside; and a valve that is provided to communicate from the water reservoir chamber to the outside of the hull, and which is introduced into the water reservoir chamber through the exhaust gas introduction pipe when the valve is opened. A swimming boat, comprising: an exhaust pipe that discharges water stored in the water storage chamber to the outside of the hull using gas exhaust pressure.