JP2021134443A - Protective clothing - Google Patents

Abstract

To provide protective clothing excellent in workability and excellent in comfort when worn.SOLUTION: Protective clothing 1 at least comprises a trunk part 10, an arm part (right arm part 20 and left arm part 30) connected to the trunk part 10 and having a cuff (right arm cuff 21 and left arm cuff 31), a leg part (right leg part 40 and left leg part 50) connected to the trunk part 10 and having a leg opening (right leg opening 41 and left leg opening 51), and a head part 60 connected to the trunk part 10 and having a head opening 61 for passing through the head. In the protective clothing 1, a stretchable member 13 elongated to 1.25 to 3.3 times a natural length is joined/arranged at least at a portion around a waist portion of the trunk part 10. A ratio of a length L5 around a thigh portion to a length L4 of an inseam portion is 45 to 55%, and a ratio of a length L7 of a rise to a length L6 of an out side length is 30 to 40%.SELECTED DRAWING: Figure 1

Description

The present invention relates to protective clothing.

Protective clothing is worn to prevent the attachment and entry of harmful substances such as chemicals, viruses, pathogens, radioactive substances, and other harmful dust into the human body. Therefore, protective clothing is manufactured using a material having a barrier property. There are various types of protective clothing, and among them, coverall type protective clothing is used as a protective clothing with high airtightness so that the wearer is not exposed to a harmful environment.

Patent Document 1 is a protective garment formed from a barrier fabric, wherein at least one elastomer strip is configured on the back surface of the body portion, and the elastomer strip is configured to form a V-shaped portion. , This V-shaped part extends from the tip part located at one point on the back of the waist, the first extending part extending from the tip part through the lower right armpit to the wrist side end of the right sleeve part, and the tip part. Protective clothing is disclosed that includes a second extending portion that extends through the lower left armpit to the wrist-side end of the left sleeve.

Japanese Patent No. 5317220

However, protective clothing having high airtightness limits the range of motion of the wearer and therefore has poor operability, which not only reduces work efficiency during work but also gives the wearer physical and psychological stress. Therefore, there is a demand for the development of protective clothing having excellent workability and comfort when worn.

The present invention has been made in view of such circumstances, and an object of the present invention is to provide protective clothing having excellent workability and excellent wearing comfort.

As a result of diligent studies to achieve the above-mentioned object, the present inventor has found that the body portion, the arm portion connected to the body portion and formed with cuffs, and the leg portion connected to the body portion and formed with a leg opening. A protective garment that includes at least a head that is connected to the torso and has a head opening for passing the head, and is 1.25 with respect to the natural length in at least a part around the waist of the torso. Stretchable members stretched up to 3.3 times are joined and arranged, and the ratio of the length around the thigh to the length of the inseam is 45 to 55%, and the length of the rise to the length of the armpit length. It has been found that the protective clothing has a ratio of L7 of 30 to 40%, and the present invention has been completed.

That is, the present invention is as follows.

(1)
The torso, the arm that is connected to the torso and has cuffs formed, the leg that is connected to the torso and has a leg opening, and the head opening that is connected to the torso and allows the head to pass through. A protective garment that includes at least a formed head, and an elastic member that is 1.25 to 3.3 times the natural length is joined to at least a part of the body around the waist. In protective clothing, the ratio of the length around the thigh to the length of the inseam is 45 to 55%, and the ratio of the length of the rise to the length of the armpit is 30 to 40%. be.
(2)
The protective clothing according to (1), wherein the ratio of the length of the abdominal circumference to the length of the chest circumference is 50 to 65%.
(3)
The protective clothing according to (1) or (2), wherein the ratio of the inseam length to the back length is 70 to 85%.
(4)
The protective clothing according to any one of (1) to (3), wherein the ratio of the sleeve length to the back length is 85 to 95%.
(5)
The protective clothing according to any one of (1) to (4), wherein the ratio of the length of the sleeve circumference to the length of the chest circumference is 40 to 50%.
(6)
The protective clothing is any of (1) to (5), which is a barrier material.
(7)
The cloth for the protective clothing is any of (1) to (6), which is at least one selected from the group consisting of a non-woven fabric, a resin, and a laminate containing a non-woven fabric layer and a resin layer. ..
(8)
The protective clothing according to any one of (1) to (7), wherein the basis weight of the cloth for the protective clothing is 25 to 125 g / m ^2.
(9)
The protective clothing according to any one of (1) to (8), which is provided on the front surface of the body portion with a fastener for attaching / detaching, which is arranged along the vertical direction.
(10)
The protective clothing is any of (1) to (9), which is an airtight clothing conforming to JIS T8115.

According to the present invention, it is possible to provide protective clothing having excellent workability and excellent wearing comfort.

FIG. 1 is a front view of an example of protective clothing according to the present embodiment. FIG. 2 is a rear view of an example of the protective clothing according to the present embodiment. FIG. 3 is a front view for explaining the relationship between the inseam and the circumference of the thigh in an example of the protective clothing according to the present embodiment. FIG. 4 is a front view for explaining the relationship between the armpit length and the rise in an example of the protective clothing according to the present embodiment. FIG. 5 is a rear view for explaining the relationship between the back length and the sleeve length in an example of the protective clothing according to the present embodiment. FIG. 6 is a front view for explaining the relationship between the chest circumference and the sleeve circumference in an example of the protective clothing according to the present embodiment.

Hereinafter, embodiments for carrying out the present invention (hereinafter, simply referred to as “the present embodiment”) will be described in detail. The following embodiments are examples for explaining the present invention, and are not intended to limit the present invention to the following contents. The present invention can be appropriately modified and implemented within the scope of the gist thereof.

In the drawings, the same elements are designated by the same reference numerals, and duplicate description will be omitted. In addition, the positional relationship such as up, down, left, and right shall be based on the positional relationship shown in the drawings unless otherwise specified. Furthermore, the dimensional ratios in the drawings are not limited to the ratios shown.

Further, in the present specification, the term with "abbreviation" indicates the meaning of the term excluding the "abbreviation" within the scope of common general technical knowledge of those skilled in the art, and the meaning itself excluding the "abbreviation" is used. Also included.

FIG. 1 is a front view of an example of protective clothing according to the present embodiment. FIG. 2 is a rear view of an example of the protective clothing according to the present embodiment.

The protective clothing 1 according to the present embodiment includes a body portion 10, an arm portion (right arm portion 20, left arm portion 30) connected to the body portion 10 and formed with cuffs (right arm cuff 21 and left arm cuff 31), and a body portion. Legs (right leg 40, left leg 50) that are connected to 10 and have leg openings (right leg opening 41, left leg opening 51) and head openings that are connected to the body 10 and allow the head to pass through. It comprises at least a head 60 on which 61 is formed. The protective clothing 1 is an overall type protective clothing (whole body protective clothing) in which the upper body and the lower body are integrated. The torso 10, arms (right arm 20, left arm 30), legs (right leg 40, left leg 50), and head 60 are, for example, sutured, bonded, heat-sealed, ultrasonically bonded, etc. It is integrated by vulcanization or the like. The protective clothing 1 according to the present embodiment is sometimes called a "protective clothing" or the like.

The body portion 10 is composed of a body portion front surface 11 and a body portion back surface 12, and fasteners 14 are provided on the front surface (body portion front surface 11) along the vertical direction. In front view, the fastener 14 is preferably provided at substantially the center of the front surface 11 of the body portion along the body axis direction. The wearer attaches / detaches the protective clothing 1 by opening / closing the fastener 14. The position where the fastener 14 is provided is not limited, but as shown in FIG. 1, it is preferable that the fastener 14 is arranged substantially in the center of the body portion 10 along the body axis direction in the front view. The fastener 14 is preferably provided with a top stopper on the peripheral edge of the head opening 61. Further, it is preferable that the bottom stopper of the fastener 14 is provided at a position lower than the circumference of the waist. By arranging the fastener 14 in this way, it is possible to make it easier to put on and take off. Although not shown, when the protective clothing 1 is worn, the slider is pulled up from the bottom stop to the top stop. Then, when undressing the protective clothing 1, the slider that has been pulled up to the top stop is pulled down toward the bottom stop. Further, from the viewpoint of improving airtightness, the fastener 14 may be provided with a fastener cover. Further, the fastener 14 may be a hook-and-loop fastener or the like.

A stretchable member 13 stretched 1.25 to 3.3 times the natural length is joined and arranged at least a part around the waist of the body portion 10. That is, the extension ratio of the elastic member 13 of the body portion 10 is 1.25 to 3.3 times. The lower limit of the elongation ratio is preferably 1.35 times or more, more preferably 1.45 times or more, and further preferably 1.65 times or more. The upper limit of the elongation ratio is preferably 2.7 times or less, more preferably 2.1 times or less, and further preferably 1.8 times or less. The extension ratio means a magnification (B / A) of the extension length (B) with respect to the natural length (A) in the no-load state. For example, when the stretchable member 13 having a natural length of 10 cm is fixed around the waist of the body portion 10 in a state of being stretched to 25 cm, the extension ratio is 2.5 times (= 25 cm ÷ 10 cm). By arranging the elastic member at such an extension ratio, it is possible to develop a contraction force to the extent that the dowels around the waist are suppressed and the tightening is not performed more than necessary.

The elastic members 13 may be arranged over the entire circumference of the abdomen, but it is preferable that the elastic members 13 are intermittently and continuously arranged at predetermined intervals in the waist circumference direction (horizontal direction). With such an interval, appropriate tightening can be applied to the abdomen. Specifically, the distance between adjacent elastic members 13 in the circumferential direction is preferably 0.5 cm to 4 cm, more preferably 1 cm to 3 cm, and even more preferably 1 cm to 2 cm. .. Further, when the elastic member 13 is arranged intermittently, it is preferable that the elastic member 13 is not arranged in the area where the fastener 14 is arranged. Further, when three or more elastic members 13 are arranged, the intervals between them can be appropriately arranged within the above range.

The material of the elastic member 13 may be any material having elasticity, and is not particularly limited, and examples thereof include synthetic rubber, natural rubber, and elastomer. Then, the elastic member 13 can be fixed to the body portion 10 by sewing, heat fusion, or the like.

The right arm portion 20 is provided with a right arm cuff 21, from which the right hand is extended to the outside. Although not shown, the right hand can be protected by wearing a separate glove or the like. From the viewpoint of ensuring the airtightness of the protective clothing 1, it is preferable that the above-mentioned elastic member 22 is arranged on the right arm cuff 21. When the elastic member 22 is used for the right arm cuff 21, the extension ratio thereof is preferably 1.55 to 3.0 times, more preferably 1.85 to 2.7 times, and 2.15 to 2.7 times. It is more preferably 2.4 times. Further, the right arm cuff 21 is preferably provided with gathers. Similarly, it is preferable that the elastic member 32 is arranged on the left arm cuff 31 provided on the left arm portion 30. The right arm portion 20 and the left arm portion 30 preferably have a symmetrical shape and dimensions. As the material of the elastic members 22 and 32, the material described as the material of the elastic member 13 of the body portion 10 can be used.

The right leg portion 40 is provided with a right leg opening 41, from which the right leg is exposed to the outside. Although not shown, the right leg can be protected by wearing separate shoes or the like. From the viewpoint of ensuring the airtightness of the protective clothing 1, it is preferable that the above-mentioned elastic member 42 is arranged in the right leg opening 41. When the elastic member 42 is used for the right leg opening 41, the extension ratio thereof is preferably 1.55 to 3.0 times, more preferably 1.85 to 2.7 times, and 2.15. It is more preferably ~ 2.4 times. Further, the right leg opening 41 is preferably provided with gathers. Similarly, it is preferable that the elastic member 52 is arranged in the left leg opening 51 provided in the left leg portion 50. The right leg portion 40 and the left leg portion 50 preferably have a symmetrical shape and dimensions. As the material of the elastic members 42 and 52, the material described as the material of the elastic member 13 of the body portion 10 can be used.

The head 60 is provided with a head opening 61, from which the face is exposed to the outside. Although not shown, the face can be protected by wearing a mask, a protective mask, protective glasses, or the like. From the viewpoint of ensuring the airtightness of the protective clothing 1, it is preferable that the elastic member 62 is arranged on the peripheral edge of the head opening 61. When the elastic member 62 is used for the head opening 61, the extension ratio thereof is preferably 1.35 to 2.7 times, more preferably 1.45 to 2.1 times, and 1.65. It is more preferably ~ 1.8 times. As the material of the elastic member 62, the material described as the material of the elastic member 13 of the body portion 10 can be used. Further, the head opening 61 is preferably provided with gathers.

The cloth of the protective clothing 1 may be any material that can prevent the invasion of substances to be protected (for example, specific chemical substances, viruses, bacteria, radioactive substances, dust, liquids, gases, etc.). From this point of view, the fabric of the protective clothing 1 is preferably a barrier fabric. The type of fabric can be selected according to the intended use, but is preferably at least one selected from the group consisting of a non-woven fabric, a resin, and a laminate including a non-woven fabric layer and a resin layer. Specific examples of the material of the protective clothing include a spunbonded non-woven fabric, an SMS non-woven fabric, a resin film, and a laminate thereof.

The spunbonded non-woven fabric is excellent in economy and strength, and is suitable as, for example, disposable protective clothing. As the spunbonded non-woven fabric, a spunbonded non-woven fabric made of a thermoplastic resin such as polypropylene, polyethylene, or polyethylene terephthalate is preferable. Among the thermoplastic resins, polypropylene is more preferable from the viewpoint of economy and strength. The content of the thermoplastic resin contained in the spunbonded non-woven fabric is preferably 90% by mass or more, more preferably 95% by mass or more, and further preferably 100% by mass.

The SMS non-woven fabric is suitable as protective clothing for medical use, for example, because it has high breathability and filtration effect while having excellent strength. The SMS non-woven fabric is a laminated non-woven fabric in which a melt-blown non-woven fabric is arranged between a first spun-bonded non-woven fabric and a second spun-bonded non-woven fabric. As the first spunbonded non-woven fabric and the second spunbonded non-woven fabric, the above-mentioned spunbonded non-woven fabric can be used. The melt-blown non-woven fabric is preferably a melt-blown non-woven fabric made of a thermoplastic resin such as polypropylene, polyethylene, or polyethylene terephthalate. Among the thermoplastic resins, polypropylene is more preferable from the viewpoint of economy and strength. The content of the thermoplastic resin contained in the spunbonded non-woven fabric is preferably 90% by mass or more, more preferably 95% by mass or more, and further preferably 100% by mass.

The resin film is preferably, for example, a thermoplastic resin film. Examples of the thermoplastic resin film include olefin films such as polyethylene films and polypropylene films. For example, the polyethylene film is preferably a porous film. The porous polyethylene film preferably has small pores that allow gas such as water vapor to pass through but not liquid. Since such a polyethylene film has moisture permeability, it is suitable because it can reduce the stress load even when the wearer sweats during long hours of work.

Further, a laminate containing the above-mentioned polypropylene spunbonded non-woven fabric or SMS non-woven fabric and a polyethylene film can be used. The layer structure of the laminate is not particularly limited, and may be, for example, a two-layer structure such as a non-woven fabric / polyethylene film, or a three-layer structure such as a first non-woven fabric / polyethylene film / second non-woven fabric. Examples of such a laminate include a polyethylene film-laminated non-woven fabric. Specific examples thereof include a laminate obtained by laminating a polyethylene film on a polypropylene spunbonded non-woven fabric or an SMS non-woven fabric. Since these are excellent in dust collecting ability, they are suitable as protective clothing against suspended solid dust and the like, for example.

Each of the above-mentioned materials may be subjected to surface treatment such as antistatic treatment, if necessary. Alternatively, an additive such as a flame retardant may be contained.

Among these, usually, from the viewpoint of excellent water resistance and oil resistance, it is selected from the group consisting of a laminate including polypropylene spunbonded non-woven fabric; SMS non-woven fabric; and polypropylene spunbonded non-woven fabric or SMS non-woven fabric and polyethylene film. It is preferably one or more.

The basis weight of the cloth of the protective clothing 1 is preferably ^{25 to 125 g / m 2.} The upper limit of the basis weight ^{is more preferably 100 g / m 2} or less, and further preferably 80 g / m ² or less. Further, the lower limit of the basis weight ^{is more preferably 45 g / m 2} or more, and further preferably 55 g / m ² or more. The protective clothing 1 having such a basis weight is usually a lightweight and thin material, and is also suitable for disposable protective clothing and the like.

Hereinafter, the size of the protective clothing 1 according to the present embodiment will be described. Unless otherwise specified, the sleeve length and the sleeve circumference are the average lengths of the right arm 20 and the left arm 30, respectively, and the thigh circumference and the armpit length are the right leg, respectively. It is the average length of the portion 40 and the left leg portion 50. In addition, each of the following sizes is measured so that the fabric does not sag.

FIG. 3 is a front view for explaining the relationship between the inseam and the circumference of the thigh in an example of the protective clothing according to the present embodiment.

In the protective clothing 1, the ratio (L5 / L4;%) of the length L5 around the thigh to the length L4 of the inseam is 45 to 55%. The upper limit of this ratio is preferably 50% or less, more preferably 49% or less, and even more preferably 48% or less. The lower limit of this ratio is preferably 46% or more, and more preferably 47% or more.

FIG. 4 is a front view for explaining the relationship between the armpit length and the rise in an example of the protective clothing according to the present embodiment.

In the protective clothing 1, the ratio of the rise length L7 (L7 / L6;%) to the armpit length L6 is 30 to 40%. The upper limit of this ratio is preferably 37% or less, more preferably 36% or less, and even more preferably 35% or less. Further, the lower limit of this ratio is preferably 31% or more, more preferably 32% or more, and further preferably 33% or more.

The protective clothing 1 preferably has a ratio (L2 / L1;%) of the abdominal circumference L2 to the chest circumference L1 of 50 to 65% (see, for example, FIG. 1). The upper limit of this ratio is more preferably 62% or less, and further preferably 61% or less. Further, the lower limit of this ratio is more preferably 51% or more, and further preferably 52% or more.

In the protective clothing 1, the ratio of the inseam length L4 (L4 / L3;%) to the back length length L3 is preferably 70 to 85% (see, for example, FIG. 2). The upper limit of this ratio is more preferably 83% or less, and further preferably 82% or less. Further, the lower limit of this ratio is more preferably 73% or more, further preferably 75% or more, and further preferably 76% or more.

FIG. 5 is a rear view for explaining the relationship between the back length and the sleeve length in an example of the protective clothing according to the present embodiment.

In the protective clothing 1, the ratio of the sleeve length L8 (L8 / L3;%) to the back length L3 is preferably 85 to 95%. The upper limit of this ratio is more preferably 93% or less, and further preferably 92% or less. Further, the lower limit of this ratio is more preferably 86% or more, and further preferably 87% or more.

FIG. 6 is a front view for explaining the relationship between the chest circumference and the sleeve circumference in an example of the protective clothing according to the present embodiment.

In the protective clothing 1, the ratio of the sleeve circumference length L9 (L9 / L1;%) to the chest circumference length L1 is preferably 40 to 50%. The upper limit of this ratio is more preferably 47% or less, and further preferably 45% or less. Further, the lower limit of this ratio is more preferably 41% or more, and further preferably 42% or more.

The protective clothing 1 according to the present embodiment can secure a wide range of motion such as joints such as arms and legs by controlling each of the above-mentioned ratios within the above-mentioned range in its size design. Excellent in sex. Furthermore, since the fabric is not tightened more than necessary when worn, and the dowels of the fabric such as the abdominal arm, arm sleeve, and leg opening can be suppressed, the stress load during wearing is reduced. Excellent comfort when worn. Then, by combining the above-mentioned ratios, such an effect is further improved. In particular, the protective clothing 1 suitable for the body shape of Asians such as Japanese can be used.

For example, the wearer may have to put on and take off the protective clothing 1 at a certain frequency (for example, once every few hours to several days) due to the necessity due to the working environment and laws and regulations. Protective clothing used in such applications is preferably disposable and economical. In this respect, since the protective clothing 1 according to the present embodiment can be manufactured from a low-cost material, it is possible to meet such a demand.

Conventionally, it has been attempted to provide a separate member for improving workability and comfort of the wearer on the protective clothing or to make it a large-scale protective clothing, but the protective clothing 1 according to the present embodiment is , A wide range of motion can be secured while having a simple structure that does not require the provision of special members. Therefore, there is no decrease in work efficiency and workability is excellent. Further, the protective clothing 1 according to the present embodiment can prevent the dowels of the fabric from being attached more than necessary when the clothes are worn, so that the physical and psychological stress load when the clothes are worn can be reduced, and thus the comfort is also improved. Excellent. Further, as described above, the protective clothing 1 according to the present embodiment is excellent in economic efficiency in that the number of parts for manufacturing is small because it is not necessary to provide a special member.

Protective clothing 1 is worn when engaging in work dealing with acids, alkalis, organic chemicals, other gases and liquids, and particulate chemicals, and is used for the purpose of permeation and / or prevention of permeation of such chemicals. Suitable for protective clothing. Protective clothing 1 can deal with various hazards, such as chemical protective clothing that protects the body from harmful chemical substances, biohazard countermeasure protective clothing that protects the body from pathogens, and the body from radioactive substances. It can be suitably used as a protective radiation protective suit or the like.

Although the protective clothing 1 has a simple structure, it is excellent in workability and comfort when worn, so that even a person who has little experience in wearing protective clothing can use it without feeling excessive stress. Therefore, the protective clothing 1 can be suitably used as an airtight clothing conforming to JIS T8115 (2015), and in particular, can be more preferably used as a type 1 airtight clothing. Airtight clothing is clothing that protects the entire body including the arms, legs, and head, and is a systemic protective clothing that has a structure that keeps the inside of the clothing airtight. Specifically, it can be used as a self-sufficient respirator internal airtight clothing, a self-contained respirator exterior airtight clothing, an airtight airtight clothing, and the like. Of course, it goes without saying that it can also be used for other types of protective clothing (for example, positive pressure clothing, sealed clothing, etc.). Further, as described above, the protective clothing 1 can be manufactured from a low-cost material and has a simple structure, so that it is suitably used as a disposable protective clothing (for example, a simple protective clothing). can.

The protective clothing 1 may be used in combination with partial protective items such as masks, hoods, visors, gloves, booties, and footwear, depending on the required protection level and protection target. Since the protective clothing 1 has a simple structure that does not require the attachment of special members and parts, it can be used in combination with a wide range of types and shapes of partial protective products.

1: Protective clothing, 10: Torso, 11: Front of torso, 12: Back of torso, 13: Elastic member of torso, 14: Fastener, 20: Right arm, 21: Right arm cuff, 22: Right arm cuff Elastic member, 30: left arm, 31: left arm cuff, 32: elastic member of left arm cuff, 40: right leg, 41: right leg opening, 42: elastic member of right leg opening, 50: left leg , 51: Left leg opening, 52: Left leg opening elastic member, 60: Head, 61: Head opening, 62: Head opening elastic member, L1: Chest circumference length, L2: Abdominal circumference length , L3: back length, L4: inseam length, L5: thigh circumference, L6: armpit length, L7: rise length, L8: sleeve length, L9: sleeves Circumferential length

Claims (10)

With the torso
An arm that is connected to the body and has cuffs
A leg that is connected to the body and has a leg opening,
A head that is connected to the body and has a head opening for passing the head,
It is a protective suit that has at least
An elastic member stretched 1.25 to 3.3 times the natural length is joined and arranged at least a part around the waist of the body portion.
The ratio of the length around the thigh to the length of the inseam is 45 to 55%.
The ratio of the rise length to the armpit length is 30-40%,
Protective clothing. The ratio of the length of the abdominal circumference to the length of the chest circumference is 50 to 65%.
The protective clothing according to claim 1. The ratio of inseam length to back length is 70-85%.
The protective clothing according to claim 1 or 2. The ratio of the sleeve length to the back length is 85 to 95%.
The protective clothing according to any one of claims 1 to 3. The ratio of the length of the sleeve circumference to the length of the chest is 40 to 50%.
The protective clothing according to any one of claims 1 to 4. The protective clothing is a barrier material,
The protective clothing according to any one of claims 1 to 5. The cloth for the protective clothing is at least one selected from the group consisting of a non-woven fabric, a resin, and a laminate containing a non-woven fabric layer and a resin layer.
The protective clothing according to any one of claims 1 to 6. The basis weight of the cloth for the protective clothing is 25 to 125 g / m ² .
The protective clothing according to any one of claims 1 to 7. A fastener for attaching and detaching, which is arranged along the vertical direction, is provided on the front surface of the body portion.
The protective clothing according to any one of claims 1 to 8. The protective clothing is an airtight clothing conforming to JIS T8115.
The protective clothing according to any one of claims 1 to 9.

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