JPH0444477Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention relates to a preventive device for preventing capsizing of a boat.

(Problems to be solved by the prior art and the invention) In general, rubber boats used at sea or rivers do not have any means to prevent them from capsizing, so they are easily damaged by gusts of wind or rough waves. There was a problem that the vehicle could overturn, posing a danger to the user in that case.

(Purpose of the invention) This invention was made in consideration of the above-mentioned circumstances, and its purpose is to simplify the structure and manufacture it at low cost, and to keep the boat floating stably so that there is no risk of it accidentally capsizing. The purpose of the present invention is to provide a capsizing prevention device that is free from overturning.

(Means for Solving the Problems) In order to achieve the above object, in this invention, a capsizing prevention device for a boat is installed on the bottom outer surface of the boat, and extends in the longitudinal direction and has a hollow shape. a main body, an opening formed on at least one end surface of the preventer main body for introducing water into the main body when the boat lands on water; It consists of a check valve that opens and closes the opening.

(Function) Therefore, when the boat lands on the water, water enters the preventer body through the opening. Further, the water inside the preventer body does not leak out due to the check valve.
Therefore, even if the boat is tilted due to gusts of wind or rough waves, the weight of the water within the preventer body generates a force to return the boat to the horizontal direction, preventing it from capsizing accidentally.

(Example) The first example embodying this idea has been described above.
This will be explained with reference to FIGS.

As shown in FIGS. 1 and 2, a boat 1 includes a floating ring section 2 that is hollow and made of rubber and inflated with gas such as air, and a bottom section that covers the entire lower part of the floating ring section 2. It is composed of 3. The outer surface of the bottom part 3 is made of a synthetic resin film,
In addition, a pair of supporting pieces 4 having a substantially V-shape in cross section and extending in parallel are attached, and a pair of overturn prevention devices are removably attached within the accommodation space 5 between each supporting piece 4 and the outer surface of the bottom part 3. It is installed.

As shown in FIGS. 2 to 4, the main body 6 of each rollover prevention device has four bent pieces 6a to 6a extending parallel to each other.
It is composed of 6d. Each preventer main body 6 includes four plate-shaped base materials 7 corresponding to each of the bent pieces 6a to 6d,
A synthetic resin film 8 covering both the front and back surfaces of each plate-shaped base material 7 forms a single plate-like structure. Further, both the front and back sides of the film 8 are bonded and fixed between the edge portions of the base materials 7 that are close to each other, and the bonded portion forms three folded portions 9 that extend parallel to each other. Each of the bent pieces 6a to 6d is connected in a bendable manner at each of the bent parts 9a to 9c, and among the bent pieces 6a to 6d, the first bent piece 6a is overlapped with the fourth bent piece 6d. By matching them together, the preventer main body 6 can be assembled into a triangular cross-section as shown in FIG.

A pair of check valves 10 having an isosceles triangular shape are swingably fixed at the base ends of the fourth folding piece 6d, and the second and third folding pieces 10 in the assembled state are fixed to the outer edges of the fourth folding piece 6d. Watertight retaining pieces 11 are formed in close contact with the inner surfaces of the curved pieces 6b and 6c. Also, the second and third
Both end edges of the bent pieces 6b, 6c are obliquely formed so as to intersect substantially perpendicularly in the unfolded state, and the length 1 thereof is set smaller than the length L of the oblique side of the check valve 10.

In the assembled state of the preventer main body 6, as shown in FIG. Each opening 12 is covered so that it can be opened and closed from the inside. And the second and third
Since the length l of the oblique edges at both ends of the bent pieces 6b and 6c is set smaller than the length L of the oblique side of the check valve 10, each top of each of the check valves 10 is located inside the opening 12. It is engaged with a bent portion 9b between both bent pieces 6b and 6c.

The capsizing prevention device configured as above is attached to the boat 1.
When installing the equipment, first assemble the rollover prevention device. That is, each check valve 10 shown in FIG.
After folding over the inner surface of the bent piece 6d, the fourth bent piece 6d is folded together with each check valve 10 into the third folded piece 6d along the bent part 9c.
While bending toward the bent piece 6c side, each check valve 10
One side 11a of the watertight retaining piece 11 is connected to the second bent piece 6c.
inside along the diagonal edge of the

Next, by stacking the inner surface of the first folded piece 6a on the outer surface of the fourth folded piece 6d while lifting the outer side of the first folded piece 6a, each of the folded pieces 6a and 6b forms the bent portions 9a and 9b.
, the vicinity of the oblique edge of the second bent piece 6b is overlapped with the other watertight retaining piece 11b of each of the check valves 10, and each of the bent pieces 6b, 6c, and 6d is bent inward. An opening 12 is formed by the edge. Then, the preventer main body 6 is assembled into a hollow triangular prism shape. In this assembled state,
The top of each check valve 10 is located inward from the opening 12.

Subsequently, as shown in FIG.
the outer surface of the preventer body 6 into the housing space 5.
If the preventive device is placed in close contact with the inner surface of the preventive device, the work of installing the preventive device can be easily completed in a short time. Then, when the boat 1 equipped with a pair of capsizing prevention devices lands on the water,
Due to the water pressure, each check valve 10 is displaced inward as shown by the two-dot chain line in FIG. 1, opening the opening 12, and the air inside the preventer main body 6 is discharged while water enters.

Therefore, in this embodiment, when the boat 1 floating on the water is torn and tilted by a gust of wind or rough waves, and one of the preventer bodies 6 rises to the surface of the water, in this embodiment, each of the preventer bodies 6 is The top of the stop valve 10 is disposed inside the preventer main body 6, and each bent piece 6b, 6c
The watertight retaining piece 11 is brought into close contact with the inner surface of the check valve 10, and the length L of the oblique side of each check valve 10 is set longer than the length l of each bent piece 6b, 6c.
will not open outward due to water pressure and water will not spill out.

Therefore, the floating preventer main body 6 and the water inside thereof generate a force to return the boat 1 to the horizontal direction, and the boat 1 is prevented from capsizing accidentally.

On the other hand, if each preventer main body 6 is to be stored, each check valve 10 is removed after each preventer main body 6 is removed from each support piece 4 of the boat 1 that has been landed, or while the preventer main body 6 is still attached. As shown by the two-dot chain line in FIG. 1, the preventer body 6 is pressed inward to drain the water inside. Next, after unfolding each preventer body 6 as shown in FIG. 3, each check valve 10 is folded over the fourth bent piece 6d, and the fourth bent piece 6d is folded together with the check valve 10. At the same time, the first folded piece 6a is folded over the second folded piece 6b along the folded part 9c. Finally, fold the double-folded part into the folded part 9b.
By folding it along the lines, the entire preventer main body 6 can be folded compactly.

In addition, when manufacturing the rollover prevention device in this embodiment, after pasting the film 8 on both the front and back sides of the plate-shaped base material 7 arranged at predetermined intervals,
By assembling the preventer main body 6 by welding its peripheral edge and bent portions 9a to 9c, and then attaching the pair of check valves 10, it can be easily manufactured in a short time.

Next, the second embodiment embodying this idea will be explained in the fifth embodiment.
This will be explained according to the diagram.

In this embodiment, a pair of preventer main bodies 20 attached in parallel to the outer surface of the bottom of the boat 1 are bendably formed into a trapezoidal cross section by five bending pieces 20a to 20e, and each check valve 21 is similarly formed into a substantially trapezoidal shape, and each of the bent pieces 20a to 20
This embodiment differs from the first embodiment in that e is bendably connected by bending portions 22a to 22d.

Therefore, in this embodiment as well, the preventive device can be easily assembled, disassembled, and attached to the boat using the same steps as in the first embodiment, and
If the boat 1 floating on the water surface tilts due to gusts of wind or rough waves, and one of the capsizing prevention devices rises to the surface of the water, the boat 1 A force is generated to return the vehicle to the horizontal direction, preventing it from overturning accidentally.

Next, a third embodiment embodying this invention will be described with reference to FIG. 6, focusing on the differences from the previous embodiments.

In this embodiment, the preventer main body 30 is formed into a cylindrical shape from a hard synthetic resin material such as vinyl chloride or polyethylene, and caps 31 are detachably screwed onto the outer periphery of both ends thereof. Each cap 3
1 and the preventer main body 30 is a rubber valve body 32.
are clamped and fixed, and both 3 are attached to the outer periphery of each valve body 32.
A packing part 33 is formed to maintain watertightness between the check valve 3 and the check valve 3 by a substantially circular cut 34 in the center of each valve body 32.
5 is formed separately so that it can be opened and closed. Further, each cap 31 is formed with an opening 36 that is concentric with the notch 34 and has an inner diameter smaller than that of the notch 34.

Therefore, in this embodiment, each cap 3
It can be easily assembled by screwing each cap 31 onto the preventer main body 30 with the valve body 32 closely arranged on the inner surface of the preventer. In this assembled state, the packing portion 33 of the valve body 32 maintains the space between each cap 31 and the preventer main body 30 in a watertight state, and each opening 36 is disposed opposite to the check valve 35. Then, after attaching a pair of capsizing prevention devices to the boat 1, when the boat 1 is landed on the water,
Each check valve 35 is displaced inside the main body 30 by the water pressure, and the opening 36 is opened, and the air inside the preventer main body 30 is discharged, and water enters. Therefore, in this embodiment, as in the previous embodiments, if the boat 1 floating on the water surface is tilted due to gusts of wind or rough waves, and one of the capsizing prevention devices floats on the water surface, the boat 1 floating on the water surface will not float. The capsize prevention device on the side of the boat and the water inside it create a force to return the boat 1 to the horizontal direction, preventing it from accidentally capsizing.

In addition, in this embodiment, since the inner diameter of the opening 36 is formed smaller than the check valve 35, even if the capsizing preventive device floats on the water surface, the water pressure within the preventive device main body 30 will cause the check valve to open. 35 is cap 3
Since the opening 36 is closed by being in close contact with the inner surface of the container 1, the water inside will not leak out.

Note that this invention is not limited to the above-mentioned embodiments, but can also be embodied in the following manner. That is, (a) after each capsize prevention device is installed, the openings at both ends of each support piece 4 are covered with a net.

(b) A belt equipped with a tightening metal fitting is used as a fixture for attaching the preventer body 6, 20, 30 to the boat 1.

(c) The main body of the preventer is formed into a plate shape from a flexible synthetic resin material having a certain thickness.

(d) The main body of the preventer is formed into a square cross section.

(e) The main body of the preventer shall be mounted in the center of the bottom outer surface of the boat.

(Effects of the device) As detailed above, this device has a simple structure and can be manufactured at low cost, and also prevents water from entering the preventer body and preventing water from flowing out of the preventer body. This is done automatically, so there is no need to do any work to do so.Furthermore, even if the boat tilts due to gusts of wind or rough waves, the weight of the water inside the preventer body generates a force to return the boat to the horizontal direction, preventing the boat from tilting. This has the excellent effect of preventing the vehicle from capsizing.

[Brief explanation of the drawing]

Figures 1 to 4 show a first embodiment of this invention, in which Figure 1 is an exploded perspective view showing the boat and the capsizing prevention device, and Figure 2 shows the state in which the capsizing prevention device is installed. FIG. 3 is an expanded view of the rollover prevention device, and FIG. 4 is an enlarged sectional view taken along line A-A in FIG. 3. FIG. 5 is a partial sectional view showing the second embodiment. FIG. 6 is an exploded perspective view showing the third embodiment. In the figure, 1 is a boat, 6, 20, 30 are preventer bodies, 9a to 9c are bent parts, 10, 21, 3
5 is a check valve, and 12 and 36 are openings.

Claims (1)

[Claims for Utility Model Registration] 1. Preventer bodies 6, 2 that are attached to the outer surface of the bottom of the boat 1, extend in the longitudinal direction, and have a hollow shape.
0, 30, and openings 12, 36 formed on at least one end surface of the preventer bodies 6, 20, 30 for introducing water into the preventer bodies 6, 20, 30 when the boat 1 lands on the water. , check valves 10, 2 that are swingably attached to the preventer main bodies 6, 20, 30 into the main bodies 6, 20, 30 and open and close the openings 12, 36;
1. A capsizing prevention device for a boat, characterized by comprising the following. 2. The capsizing device for a boat according to claim 1, wherein the preventer main bodies 6, 20, and 30 are mounted parallel to each other on both sides of the bottom outer surface of the boat 1. 3. Utility model registration claim 1, characterized in that the preventer main body 6 is formed of a plate material with a plurality of bending parts 9a to 9c extending parallel to each other so as to be bendable to have a polygonal cross section. term or second
Anti-capsizing equipment for boats as described in section.