Radioactive contamination protection raincoat for use in radiation controlled areas

Abstract

To provide a coverall-like protective raincoat that can be easily and quickly put on and taken off. [Solution] In a coverall-like protective raincoat, the vertical length of the torso portion 2c of the upper garment portion 2 is made longer than the length of the trouser portion 3, and a fastener 2f for opening and closing the torso portion 2c is provided between the upper and lower ends on the back or front of the torso portion 2c.

Description

[Technical Field]

[0001] This invention relates to a radioactive contamination protective raincoat (hereinafter also referred to as a protective raincoat) that is useful for wearing in wet environments where decontaminated water, contaminated water, etc. are handled in radiation controlled areas such as nuclear power plants. [Background technology]

[0002] In radiation controlled areas, radiation contamination protective clothing (hereinafter referred to as protective clothing) in the form of a top and bottom jumpsuit made of nonwoven fabric is used to prevent exposure of people working in the area.

[0003] The above-mentioned protective clothing is made of nonwoven fabric or cloth, and therefore provides sufficient protection against radiation in dry environments where radioactively contaminated water or decontaminated water is not present, but does not have waterproofing against contaminated water or decontaminated water.

[0004] For this reason, the protective clothing cannot be used in radiation controlled areas where radioactively contaminated water or decontaminated water is handled (hereinafter referred to as a wet environment).

[0005] In wet environments, raincoats (hereafter referred to as protective raincoats) that have the function of protecting against radioactive contamination are worn, but from the viewpoint of waterproofing, most protective raincoats are separate types (top and pants) that do not use zippers. However, coverall-type protective raincoats have another problem in that they are difficult to put on and take off.

[0006] Conventional coverall-type protective raincoats, for example, are formed by connecting together a hood made of a transparent vinyl sheet material, an upper garment with sleeves and a zipper on the front or back that creates an opening for putting on and taking off the raincoat, and pants with two leg sleeves, so that the coveralls are formed in a single piece.As a result, even when the zipper on the upper garment is opened, the opening does not become larger, making it difficult to easily and quickly insert the wearer's body into the protective raincoat, and it is also difficult to remove the wearer's body through the opening when taking off the raincoat.

[0007] On the other hand, the environment in which protective raincoats are used is such that work is rarely carried out in an environment where water is falling from above, and water often splashes onto the front of the worker while working, making it difficult to install fasteners on the front. [Prior art documents] [Patent documents]

[0008] [Patent Document 1] Japanese Patent Application Laid-Open No. 2012-252021 [Patent Document 2] Japanese Patent Application Laid-Open No. 2017-008466 [Patent Document 3] Utility Model Registration No. 3204407 Summary of the Invention [Problem to be solved by the invention]

[0009] Therefore, the object of this invention is to provide a coverall-like protective raincoat that is easy to put on and take off, and that has a hood made of transparent vinyl sheet material, an upper garment portion also having both sleeves and a fastener for opening and closing for putting on and taking off, and a trouser portion also having two leg tubes, all connected together as one unit. [Means for solving the problem]

[0010] The present invention, which was made to solve the above problems, is configured as a coverall-like protective jacket consisting of a hood made of transparent vinyl sheet material, an upper garment part also having both sleeves and a fastener for fastening and detaching, and a trouser part also having two leg tubes, all connected together; the torso part of the upper garment part has a vertical length greater than the length of the trouser part, and the fastener for fastening and detaching is provided between the upper and lower ends of the back or front of the torso part.

[0011] The protective raincoat of this invention has a placket made of waterproof material that covers the zipper to prevent water from seeping in through the zipper, and after the raincoat is put on, waterproof tape is applied to the open side of the placket to ensure the waterproofness of the zipper and placket.

[0012] In the present invention, the ratio of the length of the torso portion to the length of the pants portion is, for example, 10:7 for the torso portion. The ratio may be other than 10:7 as long as the length of the torso portion is sufficiently longer than the length of the pants portion.

[0013] In the protective raincoat of this invention, cylindrical covers are provided at the tips of both sleeves of the upper garment and at the lower ends of the two leg tubes of the trousers, so that even if the cuffs, which are tightened with rubber or the like, and the bottoms of the leg tubes, which are tightened with rubber or the like, are exposed to liquids such as decontamination water, the liquid will not seep into the raincoat. [Effects of the Invention]

[0014] The protective raincoat of this invention is a coverall-type raincoat with a hood, in which the vertical length of the torso section of the upper garment is made sufficiently longer than the length of the trousers, and a fastener for opening and closing the torso can be provided along the entire length from the top to the bottom of the back or front of the torso, allowing for a large opening for putting on and taking off, making it possible to easily and quickly put on and take off even a coverall-type protective raincoat. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is a rear view of the radiation contamination protection raincoat (protective raincoat) according to the present invention. [Figure 2] FIG. 2 is a front view of the protective raincoat of FIG. 1. [Figure 3] FIG. 3 is an enlarged front view of the cuffs of the protective raincoat of the present invention shown in FIGS. [Figure 4] FIG. 10 is an enlarged front view of the bottom portion of the protective raincoat of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0016] 1 and 2 are rear and front views of an example of a radioactive contamination protection raincoat (protective raincoat) PC according to the present invention.

[0017] The protective raincoat PC of this invention shown in Figures 1 and 2 is made entirely from a transparent sheet-like vinyl material. However, other flexible transparent sheet materials such as films and sheets other than vinyl may also be used.

[0018] This protective raincoat PC is made of the above-mentioned material and is formed into a coverall-type protective raincoat PC of the present invention, with the hood portion 1, the upper garment portion 2 having left and right sleeves 2a, 2b welded together by heat sealing or the like, and the trouser portion 3 having two leg tubes 3a, 3b connected by welding such as heat sealing. In Figures 1 and 2, Hs1 to Hs7 indicate weld lines of the protective raincoat material, welded by high frequency welding or the like.

[0019] The hood portion 1 has a facial opening 1a on the front side that exposes the eyes and nose, and the lower edge of the hood portion 1 is welded to the upper opening (neck area) of the torso portion 2c of the upper garment portion 2 by a welding line Hs1.

[0020] The shoulder sides of both sleeves 2a, 2b are welded to the armholes of the body part 2c at welding lines Hs2, Hs3.

[0021] The openings at the tips of the sleeves 2a and 2b are formed into expandable and contractible drawers 2d and 2e made of rubber or the like.

[0022] The body portion 2c is formed so that the vertical length (height) from the neck area where the hood portion 1 is welded to the boundary with the trouser portion 3 (the lower end of the body portion 2c) is greater than the vertical length of the trouser portion 3. Incidentally, in the drawings, the length of the body portion 2c is expressed as 1 to the length of the trouser portion 3 at a ratio of 0.7. The body portion 2c and the trouser portion 3 are welded at a weld line Hs4.

[0023] In the illustrated embodiment, a zipper 2f for opening and closing is located on the body 2c, approximately at the center of the back surface, in the height direction, from the lower end of the body 2c to the middle of the back of the hood portion 1. The zipper 2f can also be located on the front side of the body 2c. While it is preferable for the zipper 2f to be a waterproof zipper, if a standard (non-waterproof) zipper is used due to cost considerations, a flap-shaped zipper cover 2g is attached over the zipper 2f by welding at welding line Hs5 to waterproof the zipper portion. After wearing this raincoat PC, waterproof tape is applied to the open side of the zipper cover 2g to ensure the waterproofness of the zipper 2f.

[0024] The cuffs of both sleeves 2a, 2b are formed with drawstring sections 2d, 2e made of rubber or the like to prevent the intrusion of contaminated water, etc., and the bottoms of both leg tubes 3a, 3b of the trousers 3 are also formed with drawstring sections 3c, 3d made of rubber or the like to prevent the intrusion of water, etc. The drawstring sections 2d, 2e of the sleeves 2a, 2b and the drawstring sections 3c, 3d of the leg tubes 3a, 3b are all intended to prevent flying droplets of contaminated water, etc. from infiltrating into the garment (inside the raincoat PC) through the cuffs and bottoms.

[0025] The protective raincoat PC of this invention is provided with waterproof covers 4 and 5 for the cuffs and hem as shown in Figures 3 and 4 to effectively prevent contaminated water and other substances that splash around during work from seeping into the gloves and boots worn by the raincoat wearer.

[0026] The waterproof cuff covers 4 are cylindrical bodies made of the same material as the protective raincoat PC that covers the narrowed portions 2d and 2e of the cuffs, and are welded to the left and right sleeves 2a and 2b at weld lines Hs6. The tip of the waterproof cover 4 is formed into the narrowed portion 4a.

[0027] The waterproof cover 5 for the hem is a cylindrical body made of the same material as the waterproof cover 4 that covers the tapered parts 3c, 3d of the hem, and is welded to the left and right leg tubes 3a, 3b at the welding line Hs7. The waterproof cover 5 for the hem does not form a tapered part. This is because the shaft part of the boot to be worn is to be accommodated in the gap between the outer surface of the leg tubes 3a, 3b and the inner surface of the waterproof cover 5.

[0028] When the fastener 2f of the invented raincoat is provided on the front, it can be provided all the way to the lower part of the face of the hood part 1. The fastener 2f may also be provided in the entire vertical section of the body part 2c.

[0029] The radioactive contamination protective raincoat (protective kappa) of this invention is as described above. It is a coverall-type raincoat in which the length of the torso of the top is made longer than the length of the trousers, so that the opening of the zipper on the torso can be opened much larger than conventional products. Therefore, it is extremely useful as a raincoat to prevent radioactive contamination when worn in wet environments where contaminated water or decontaminated water is handled in radiation controlled areas, and because the opening of the zipper is large, it can be put on and taken off easily and quickly, making it very convenient to use. [Explanation of symbols]

[0030] PC Original Protective Raincoat 1 Hood section 2 Upper garment part 2a, 2b Left and right sleeves 2c Body part 2d, 2e Cuffs 2f zipper 2g fastener cover 3 Pants 3a, 3b Left and right leg tubes 3c,3d Hem tapered part Hs1~Hs7 welding lines

Claims

1. A coverall-like protective raincoat comprising a hood made of a flexible transparent sheet material including transparent vinyl, an upper garment also having both sleeves and a fastener for opening and closing for putting on and taking off, and a trousers also having two leg tubes, all connected together, characterized in that the length of the torso of the upper garment in the vertical direction is made longer than the length of the trousers, and a fastener for opening and closing is provided at least between the upper end and the lower end on the back or front of the torso.

2. 2. The raincoat for protecting against radioactive contamination according to claim 1, wherein the fastener for opening and closing is provided on the back of the body between the rear of the head of the hood portion and the lower end of the body.

3. 2. The raincoat for protecting against radioactive contamination according to claim 1, wherein the fastener for opening and closing is provided on the front surface of the body portion between the lower part of the face of the hood portion and the lower end of the body portion.

4. 4. A raincoat for protecting against radioactive contamination according to claim 1, wherein the ratio of the length of the body to the length of the trousers is 10:

7.

5. The radioactive contamination protection raincoat according to any one of claims 1 to 3, wherein the tip portions of both sleeves of the jacket portion and the lower ends of the two leg tubes of the trouser portion have openings formed into drawers that can be expanded or contracted using rubber or the like, and a cylindrical cover body is provided on the drawers.

Images