JP2000328315A - Floatable rain wear - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rain wear hardly damaging the workability and movability, having heat-retaining properties and having the performance of life jacket capable of floating the body on the sea in case of emergency such as the fall from a ship or a quay wall into the sea. SOLUTION: The buoyant material arranged in the rain wear is a polyethylene b with a three-dimensional structure of closed cell foam, completely sealed with a plastic films (a) and c, and can provide a large buoyancy by using a part of the space part as the buoyant material.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flap fitted with a buoyant material, and an object of the invention is to minimize a drowning accident caused by wearing the flap and dropping into the sea during work on a boat in fishing or fishing. It was developed in.

[0002]

2. Description of the Related Art In order to prevent accidents such as drowning caused by falling in the sea, a life jacket is used in fishing and the like, and a life vest is required to be worn on boats in the fishing industry. Is 20mm
The workability is remarkably inferior due to the use of so many thick foams. In practice, they are usually kept, but they are hardly worn, and drowning accidents such as drowning due to falling are unending.

[0003]

As described above, it is hopeless from the viewpoint of workability to always wear a conventional life jacket, etc., in preparation for such an accident such as work on board a ship. Rather, poor workability may increase the risk of falling. The present invention has almost the same buoyancy effect as life-saving vests, with little difference from the daily worn feathers, with a light and soft feel and excellent cold protection and heat retention, without impairing workability. This is an examination of floating wings.

[0004]

Means for Solving the Problems In consideration of the workability on board, the thickness of a buoyancy material-attached feather is limited to 10 mm or less.
A three-dimensional structure of foamed polyethylene having a void in a range of 10 mm and a specific gravity of 0.01 to 0.1, preferably a thickness of 1 to 6 mm and a specific gravity of 0.01
０．０0.02.

However, when the thickness is 5 mm and the specific gravity is 0.02, it is difficult to obtain a sufficient buoyancy simply by arranging it at the front and back of the wing. Therefore, by completely covering and sealing the foamed polyethylene with a soft plastic film having a specific gravity of 1.3 or less, the void portion also becomes a part of the buoyancy material,
Further, since the specific gravity of the air is 0, a large buoyancy can be obtained, and even with a thickness of about 5 mm, a buoyancy for sufficiently lifting a person who has fallen down on the boat or the like during work on board can be obtained.

[0006] Here, as the soft plastic covering the polyethylene foam having a three-dimensional structure, it is naturally desirable to use a soft plastic having a low specific gravity.
Sufficient buoyancy can be obtained without any problem up to the specific gravity.

Examples of the material of the soft plastic covering the polyethylene foam include polyurethane, polyvinyl chloride, ethylene / vinyl acetate copolymer (EVA), polyvinylidene chloride, polystyrene, polyethylene and the like. Ethylene / vinyl acetate copolymer (EVA), polyvinyl chloride, and the like are preferable in consideration of specific gravity, gas barrier properties, and the like.

Further, in order to form a part of the buoyancy material with a gap between the foamed polyethylene coated with a soft plastic to further increase the buoyancy, the soft plastic film must be completely adhered to prevent water from entering. There are various methods such as adhesive application and high frequency welder welding.However, from the viewpoint of workability and adhesive strength, it is necessary to provide an independent gap covered with polyethylene foam by high frequency welder welding or heat sealing. desirable.

The foam may be an open cell without any problem in the structure of the buoyancy material of the present invention. However, in order to maintain good buoyancy even when a part of the coating film is damaged, the foam is a closed cell. It is desirable. For that purpose, as a foaming agent, in addition to halogenated hydrocarbons such as liquid propane gas (LPG), azodicarbonamide, sodium citrate and the like are effective, and the thickness is 1 to 10 mm, preferably 1 to 6 mm,
Specific gravity is 0.01 to 0.1, preferably 0.01 to 0.02
It is.

The buoyancy material may be formed as one whole with one large film. However, if air in the voids leaks due to damage of the film or the like, the buoyancy material has a sufficient effect as expected. Since no buoyancy material can be obtained, it is preferable that the buoyancy material be divided and arranged independently and completely welded and sealed by the aforementioned high-frequency welder, heat seal, or the like.

As a result, the resistance at the time of bending is reduced due to the divisional arrangement of the buoyancy material suitable for the work, and the workability and the mobility are improved. It is also conceivable that a deviation of the buoyancy material may occur in the joint wing during work or the like, so it is desirable to fix the buoyancy material to the outer material by a method such as bonding or sewing.

Regarding the three-dimensional structure of the foam for creating voids, there are lattice-like foams in which rod-like foams are stacked in two layers and intersect at right angles, and foams mainly used for fruit protection which are laminated on a bias. However, in consideration of elasticity, it is preferable that the bias is stacked.

[0013] The buoyancy material produced in this way is attached to the wing, but if it is used especially for fishing,
In winter, the buoyancy material also works effectively in cold weather, and it can be expected that the function of a warm and safe winter wing will be light and warm even in harsh cold work on board.

As a method of mounting a buoyancy material, a buoyancy material formed in a shape conforming to the shape is mounted between a surface material and a lining material of the wing. Attach the buoyancy material with a zipper to make the buoyancy material detachable, or close it tightly by sewing or the like, so that the buoyancy material does not jump out.

[0015]

FIG. 2 is an exploded perspective view showing an example of a buoyant material according to the present invention. FIG. 1 is an enlarged view of a three-dimensional structure independent fine polyethylene foam b shown in FIG.
In this case, in b, a three-dimensional structure is formed by crossing the bias with a rod-shaped member. However, the three-dimensional structure may be used.

FIG. 3 shows the completed shape of the buoyancy material in which b is completely covered by a and c of FIG. 2, and FIG. 5 is a sectional view thereof. Since b has a three-dimensional structure, it has many voids. Therefore, the ratio of the foamed polyethylene to the space is approximately 50%, and the rest is air. Here, the 70 μm thick ethylene / vinyl acetate copolymer (EVA) was used as the foamed polyethylene coating material, which was sealed by welder welding. However, the coating material is not limited to polyvinyl chloride, polyvinyl chloride, and the like. Any soft plastic film such as vinylidene chloride may be used. FIG. 4 shows a structure of a large number of independent cells instead of a single structure made of a buoyant material. It can be shaped.

FIG. 6 is a rear view of an example in which the buoyancy material according to the present invention is mounted on a joint blade, and FIG. 7 is a front view thereof. If the buoyancy material according to the present invention is used, sufficient buoyancy can be obtained only by disposing a thin buoyancy material only on the chest, abdomen, and back, and it is not necessary to dispose it on the arm that impairs workability.

Regarding the material of the outer material and lining of the double wing which is used in the present invention, here, a material obtained by laminating a 0.2-mm-thick vinyl chloride on a nylon woven fabric on the outer material and a lining material Although a thin nylon mesh fabric was used, it is not particularly limited. Generally, it is a vinyl cloth, a vinyl chloride sheet, a polyurethane woven cloth or the like, but the material is not particularly limited. The outer material and the lining may be the same material or different materials. However, considering that the material becomes heavier and impairs the workability, the lining is preferably a thin mesh cloth.

[Table 1]

Table 1 is a comparison table of the performance of the feather according to the present invention, the conventionally worn fishery feather, and the conventional life jacket. The synthetic feather according to the present invention uses, for example, a laminate of 0.2 mm thick vinyl chloride on a nylon woven fabric as a dress material, and a buoyancy material of 5 mm thick biased two-layer laminated foamed polyethylene of 70 μm thick ethylene. It is coated with vinyl acetate copolymer (EVA) and the lining uses mesh fabric. Conventional synthetic feathers are general purpose synthetic feathers for marine products with vinyl chloride. As can be seen from the table, with respect to the heat retention, the performance is remarkably improved as compared with the conventional product, which has been sacrificed to emphasize workability. In terms of buoyancy, good buoyancy is obtained by forming the voids as a part of the buoyancy material, and since foamed polyethylene is used, the cushioning property is high, which greatly contributes to shock absorption.

[Table 2]

Table 2 shows comparison data of the buoyancy of the structure having the structure according to the present invention and the three-dimensional structure independent foamed polyethylene serving as the core material, with the same thickness and the same area. Although the comparison was made at 1 m ² , in the case of the structure of the present invention, a buoyancy of 2.5 times that of the foamed polyethylene as the core material was obtained, and the test method of JIS F1026 “Floating jacket for boats” was used. , The buoyancy change rate after 24 hours is within -5% of the standard.

[0021]

As described above, according to the present invention, at the time of work, it has the same motility and workability as a normal wing, but when a sudden accident such as falling from a ship into the sea occurs. Has the same function as a life vest and has sufficient buoyancy.
In addition, due to the structure of the present invention, the buoyancy material disposed on the joint wings serves as a heat insulating material, which not only provides comfortable work in severe cold seasons, but also has excellent buffering properties, which mitigates accidents caused by impacts during work. Also works effectively.

[Brief description of the drawings]

FIG. 1 is a schematic view showing an example of a buoyant material core material according to the present invention.

FIG. 2 is an exploded perspective view showing an example of a buoyancy material according to the present invention.

FIG. 3 is a completed external view of one piece of a buoyancy material.

FIG. 4 is an external view of four pieces of a buoyancy material continuous.

FIG. 5 is a sectional view of FIG. 3;

FIG. 6 is a front view of the front part of the present invention emphasizing a position where a buoyancy material is set on the front part;

FIG. 7 is a back surface of the wing of the present invention in which a position for setting a buoyancy material on the wing is emphasized.

[Explanation of symbols]

 a Polyethylene foam-coated soft plastic film b Independent micro-foamed three-dimensional structure polyethylene a Polyethylene foam-coated soft plastic film

Claims (1)

[Claims] 1. A three-dimensional structural foam having voids composed of closed cells made of polyethylene, which is disposed between a pair of feathers composed of a surface material and a lining, wherein the three-dimensional structural foam is a soft plastic. A wing having a laminated body whose entire surface is completely sealed with a film, and at least one or more layers are disposed using the laminated body as a buoyant material.