JPH0449033Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a rubber boat, and more specifically, to a rubber boat that can quickly drain water that has entered the boat.

(Prior art) Conventionally, as a rubber boat equipped with a drainage function at the bottom of the boat, a plurality of cylindrical air chambers are formed on the lower surface of the air cylinder, as described in Japanese Utility Model Application Publication No. 52-164897. A rubber boat body is formed by gluing together the bottom of the boat, and a suitable number of drainage holes are drilled around the periphery of the bottom of the boat. In this boat, the periphery of the bottom of the boat provided with the drainage hole is located below the upper surface of the air chamber, so that water that has entered the boat can be discharged through the drainage hole.

(Problem to be solved by the invention) The above-mentioned rubber boat exhibits sufficient drainage effect when used mainly for fishing or leisure purposes, and even when the boat hits some waves, it has a certain amount of drainage. Although this is expected to be effective, recently, as rubber boats have come to be used for rafting down rivers, a large amount of water constantly enters the boat and the amount of water increases significantly. Simply drilling a hole will not provide enough drainage to cope with the large amount of water that enters, and a sufficient drainage effect cannot be expected.

When Toroko tried to increase the drainage capacity by making the drainage holes larger to increase the amount of displacement, the strength of the bottom of the boat decreased, which resulted in the boat being used for river rafting, where it collides with rapids and repeatedly makes violent movements. Not only is it unsuitable in terms of durability, but it also reduces the buoyancy of the bottom of the ship, which not only reduces drainage capacity but also poses safety problems, and there is a limit to how large the drainage holes can be made.

The present invention was developed in view of the conventional circumstances, and it increases the absolute amount of water discharged without reducing the strength of the bottom of the rubber boat, and efficiently removes water from the upper surface of the bottom of the boat. To provide a rubber boat with high drainage performance capable of quickly draining water even when the amount of infiltrating water increases.

(Means for solving the problems) The means of the present invention taken to achieve the above-mentioned problems are as follows.

An opening is provided in the bottom of the rubber boat body, and an air mat formed separately from the rubber boat body is fitted into this opening across the entire length of the outer periphery with a circumferential gap, and the periphery of the air mat and the inner periphery of the opening are attached and detached. They are joined together with a circumferential gap left by a possible connecting means.

(Function) By connecting the air mat periphery and the opening inner periphery with a removable connecting means, the peripheral gap for drainage formed over the entire length of the outer circumference of the air mat can be made sufficiently without reducing the strength of the bottom of the ship. The large opening increases the drainage capacity of water that enters the boat. The air mat can then be removed from the rubber boat body by untying the connecting means.

(Example) An example of implementing the present invention will be described based on the drawings. In the drawings, A is a rubber boat main body. The rubber boat main body A has an air cylinder 6 formed in a ring shape, and a bottom cloth is stretched over the lower surface of the air cylinder 6 to form a bottom part 1, and an opening 2 is bored in the bottom part 1. The opening 2 is a rectangular opening that covers substantially the entire surface of the bottom 1 except for the front and rear parts, and reinforcing rings 7 are arranged at regular intervals on the periphery of the opening 2, through which a connecting cord 5 (to be described later) is inserted.

An air mat 3 formed separately from the rubber boat body A is fitted into the opening 2 over the entire length of the outer periphery with a circumferential gap therebetween. The air mat 3 has a large number of thin cylindrical air chambers connected in the width direction, similar to the air mat for leisure use, and the rubber boat body A.
It is formed separately into a rectangular plate shape that is somewhat smaller than the opening 2, and a reinforcing ring 7 is arranged in parallel around the periphery of the plate, similar to the periphery of the opening 2. Then, the air mat 3 is fitted into the opening 2, and the connecting string 5 is inserted in a zigzag pattern (alternately) through the reinforcing ring 7 around the air mat 3 and the reinforcing ring 7 around the opening 2 to connect them. .

At this time, a drainage gap 4 of an appropriate width is provided between the periphery of the air mat 3 and the periphery of the opening 2.

As mentioned above, the reinforcement ring 7 around the air mat 3
By extending the connecting string 5 between the air mat 3 and the reinforcing ring 7 around the opening 2, it is possible to provide a sufficiently large drainage gap around the air mat 3 without reducing the strength of the bottom 1.

Furthermore, the air mat 3 can be removed from the opening 2 by untying the end of the connecting string 5, which allows the air mat 3 to be repaired or replaced at will. Furthermore, the width of the air mat 3 is reduced by injecting air into the internal air chamber, but the air mat 3 can be formed separately from the rubber boat body A and fitted into the opening 2. This eliminates the possibility that the shape of the rubber boat body will be distorted due to the reduction in the width direction of the air mat when air is injected into the air mat, unlike when the two are bonded together.

Next, to explain the drainage action, when a large amount of water enters the boat due to water spray, etc., the air mat 3 uses its own buoyancy to keep the top surface of the mat 3 at a higher position than the water surface. exclude from those around you. Then, the water flows down into the gap 4 at approximately the same height as the water surface and is quickly discharged.

Since the above-mentioned effect is produced by the buoyancy of the air mat 3, it is particularly enhanced when the boat is submerged with a large amount of water and the air mat 3 sinks below the water surface. Therefore, it has extremely reasonable drainage characteristics in which the drainage effect increases with the amount of water that has entered.

(Effect of the invention) The rubber boat of the present invention has an opening in the bottom of the boat, and an air mat formed separately from the rubber boat body is fitted into this opening with a circumferential gap across the entire length of the outer periphery, and the air mat is connected to the periphery of the air mat. and the inner peripheral edge of the opening are connected by a removable connecting means, so that a gap with sufficient drainage capacity can be provided over a wide range over the entire length of the outer circumference of the air mat without reducing the strength of the bottom of the ship. Moreover, by doing so, water that has entered the boat due to the buoyancy of the air mat can be removed from the upper surface of the bottom of the boat (the upper surface of the air mat).
Since the function of removing water from the water and sending it out to the drainage gap described above is not impaired in any way, a high drainage capacity can be provided.

In addition, since the peripheral edge of the air mat and the inner peripheral edge of the opening are connected by a detachable connecting means,
The air mat can be freely attached and detached, and therefore the air mat can be easily repaired or replaced, which is also excellent in economy.

Furthermore, by fitting an air mat formed separately from the rubber boat body into the opening in the bottom of the boat,
There is no possibility that the shape of the rubber boat body will be distorted due to the widthwise dimension reduction when air is injected into the air mat, and the rubber boat can be made highly stable and of excellent quality.

[Brief explanation of drawings]

FIG. 1 is a plan view showing a rubber boat embodying the present invention, and FIG. 2 is a sectional view taken along line A--A in FIG. 1. In the diagram, A...Rubber boat body, 1...Bottom, 2
...Opening, 3...Air mat, 4...Gap, 5
...Connection string (connection means).

Claims (1)

[Scope of utility model registration request] An opening is provided in the bottom of the rubber boat body, and an air mat formed separately from the rubber boat body is fitted into this opening across the entire length of the outer periphery with a circumferential gap, and the peripheral edge of the air mat and the inner peripheral edge of the opening are attached and detached. A rubber boat that is connected using possible connection means with a circumferential gap remaining.