JPS6142679B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a ventilation system applied to a stern storage compartment of a small boat.

In small vessels equipped with an outboard motor, the fuel tank for the outboard motor is often stored in a stern storage compartment formed between the hull and the stern stand. This stern storage compartment is usually constructed so that items can be taken in and taken out through an opening on the top surface of the stern platform, and this opening is covered with a cover plate, which is used as a seat for the operator while the vessel is running. When storing the fuel tank in the stern storage compartment in this way, safety must be ensured by releasing the evaporating fuel from the stern storage compartment to the outside of the ship to keep the fuel gas concentration in the stern storage space low at all times. Therefore, some boats have conventionally been provided with an intake port that guides the running wind into the storage compartment and an exhaust port that guides the air inside the storage compartment containing fuel gas to the outside of the boat. However, in the conventional model, the exhaust port was installed on the stern side of the overlap between the stern platform and the lid plate, so when there are following waves coming from behind the boat, water can enter the stern storage compartment from this exhaust port. The sex was hot.

This invention was made in view of these inconveniences, and provides a ventilation system for the stern storage compartment of a small boat, which prevents water from entering the stern storage compartment even when there is a following wave, and also efficiently ventilates the stern storage compartment. The purpose is to provide the following. In order to achieve this object, the present invention provides an intake port on the bow side of the overlapping portion between the stern platform and the lid plate to guide the traveling wind into the stern storage compartment, and an exhaust port on the shipside side of the overlapping portion. It is composed of The present invention will be explained in detail below based on the drawings.

Fig. 1 is a plan view showing an embodiment of the present invention, Fig. 2 is a sectional view taken along the - line, Fig. 3 is a perspective view showing the state in which the lid plate is opened, and Fig. 4 is a - line taken in Fig. 1. FIG. In these figures, the symbol 1
The hull 1 is made of fiber-reinforced plastic, and a gunwale 3 is formed inside the upper edge of the entire periphery of the hull 1 using a foamed synthetic resin 2 as a core material. In FIG. 1, 4 is a bow stand, 5 is a fish cage located approximately in the center of the hull 1, and 6 is a lid of this fish tank. Reference numeral 7 denotes a front stock pit located between the bow stand 4 and the fish tank 5. The lower part of the front stock pit 7 is a storage compartment, and is designed to be able to take things in and out by opening the lid 8. Reference numeral 9 denotes a rear cockpit, in which two inspection holes into which plugs 10 are screwed are provided. This inspection hole is used when replacing a sliding material (not shown) which is a reinforcing material to prevent damage to the bottom of the ship when the hull 1 is salvaged. In addition, a pair of drain ports 11 for draining water are opened in the bow stand 4 and the front and rear cockpits 7 and 9, respectively, on the left and right sides. In addition, the bow stand 4, the top surface of the fish tank 6,
Front and rear cockpits 7, 9 and stern platform 20 (described later)
is formed by a deck member made integrally of fiber-reinforced plastic.

20 is a stern deck, and a stern storage compartment 21 is formed between this stern deck 20 and the hull 1. A rectangular opening 22 is formed in the upper surface of the stern platform 20, and this opening 22 is covered with a cover plate 23 also made of fiber-reinforced plastic. The peripheral edge of the opening 22 rises upward from the upper surface of the stern platform 20, and the upper edge is further bent horizontally inside the opening 22 to form a flange 24. The peripheral edge of the cover plate 23 is bent downward so as to wrap around the flange 24 of the opening 22. That is, when this cover plate 23 is placed over the opening 22, the upper surface of the flange 24 and the cover plate 23
The inner surface near the periphery overlaps. That is, this becomes the overlapping part of the opening 22 and the cover plate 23.

An intake port 30 for guiding the running wind into the stern storage compartment 21 is formed on one side of the bow side of this overlapping portion, and an exhaust port 40 is formed on one side of the overlapping portion on the ship side. As is clear from FIGS. 3 and 4, the air intake port 30 is located between a recess 32 formed in an upright wall 31 connecting the stern platform 20 and the rear cockpit 9, and this recess 3.
2, and a cutout-shaped window 33 formed in the flange 24 so as to connect to the recess 32. When the cover plate 23 is covered, as shown in FIG.
Passing between the window part 33 and the back surface of the cover plate 23,
It is guided into the stern storage compartment 21. The exhaust port 40 includes a recessed portion 41 formed by recessing the upper surface of the flange 24, and a notch 42 formed at the edge of the cover plate 23 corresponding to the recessed portion 41. Note that the size of this notch portion 42 is sufficiently larger than the diameter of a fuel pipe 53, which will be described later.

A pair of left and right keel parts 5 are provided at the bottom of the hull 1.
0,50 are integrally formed, and the stern storage compartment 21
Inside, a fuel tank 51 is placed between the keel parts 50, 50. Furthermore, this fuel tank 5
1 is made by square timbers 52, 52 fixed to the bottom of the ship,
Its movement is regulated. This fuel tank 51
A fuel pipe 53 is connected thereto, and this fuel pipe 53 extends onto the stern platform 20 through the exhaust port 40, that is, between the recessed portion 41 of the flange 24 and the cutout portion 42 of the cover plate 23.

In FIG. 1, reference numeral 60 denotes an outboard motor held on a transom 61 at the stern of the boat, and the externally extending end of the fuel pipe 53 is connected to this outboard motor 60. In the figure, reference numeral 62 indicates a control lever of the outboard motor 60, and reference numeral 63 indicates an operator, who is seated on the lid plate 23 of the stern storage compartment 21.

While the boat is running, the wind from the boat hits the recess 32 of the intake port 30 and enters the stern storage compartment 21 through the window 33. Running wind is in the stern storage compartment 2
1, and the evaporated gas from the fuel tank 51 is discharged through the exhaust port 40. If the intake port 30 and the exhaust port 40 are arranged near the diagonal position of the opening 22 as shown in FIG.
Since the inside of the container can be stirred, the discharge of evaporated gas is further promoted.

In the exhaust port 40 of this embodiment, the flange 2
By changing the height of 4, the depressed portion 41
In addition, at the intake port 30, the window portion 33 and the recessed portion 32 are formed by recessing a portion of the flange 24 and the upright wall 31. It can be easily molded.

In this embodiment, a drain hole 70 is provided on the side surface of one keel portion 50 as shown in FIG.
, and the stopper 71 is screwed here, so when draining the water accumulated in the hull 1,
There will be almost no water left inside. That is, hull 1
By collecting the water in one keel part 50 and draining it, the water can be almost completely drained. Note that since the drain hole 70 is located on the side surface of the keel portion 50, the drain hole 70 and the plug 71 are not easily damaged even when the hull 1 is pulled up to the beach.

Further, the present invention is not limited to this embodiment. For example, the notch 42 of the exhaust port 40 is
It is also possible to make a horizontally elongated notch along 1, or to further recess the outside of the recessed part 41 of the stern platform 20 without providing the notch 42.

In this invention, as described above, the intake port is provided on the bow side near the overlap between the stern platform and the lid plate, and the exhaust port is provided on the ship side near this overlap area, so that the following waves do not get stuck on the stern platform. However, the following waves do not flow directly into the stern storage compartment from the exhaust port. In addition, since the wind entering the stern compartment from the intake port changes direction here, the wind entering the stern compartment is easily distributed to every corner of the compartment, and ventilation is efficiently performed.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing an embodiment of the present invention, Fig. 2 is a sectional view taken along the - line, Fig. 3 is a perspective view showing the cover plate in an open state, and Fig. 4 is a - line taken in Fig. 1. FIG. 1...hull, 20...stern stand, 21...stern storage, 22...opening, 23...cover plate, 30...intake port, 40...exhaust port.

Claims (1)

[Claims] 1. In the stern storage compartment of a small boat, which is formed between the hull and the stern platform, and the opening on the top surface of the stern platform is covered with a cover plate, on the bow side near the overlapping part of the stern platform and the lid plate. 1. A ventilation system for a stern storage compartment of a small boat, characterized in that an intake port is provided for guiding traveling wind into the stern storage compartment, and an exhaust port is provided on the ship's side near the overlapped portion.