WO2021070264A1

WO2021070264A1 - Laceration preventing protective material and laceration prevention equipment

Info

Publication number: WO2021070264A1
Application number: PCT/JP2019/039711
Authority: WO
Inventors: 登三崎; ポールデイビットポインター
Original assignee: 株式会社マルイチ
Priority date: 2019-10-08
Filing date: 2019-10-08
Publication date: 2021-04-15
Also published as: JPWO2021070264A1

Abstract

[Problem] To provide a protective material. [Solution] The present invention relates to a laceration preventing protective material characterized by having a pile portion comprising high-strength fiber. In addition, the present invention relates to laceration prevention equipment for use by a chainsaw operator and using the laceration preventing protective material. According to the present invention, since there is a pile portion comprising high-strength fiber, the length per strand of high-strength fiber is sufficiently long and there will be a large volume of fiber that will be tangled and drawn out by a rotating blade the instant the blade comes into contact therewith, thereby enabling the rotating blade to be stopped earlier than in the prior art and preventing injuries.

Description

Cut prevention protective material and cut prevention equipment

The present invention relates to a protective material.

Conventionally, a protective layer using high-strength fibers in case a worker engaged in work using a knife such as a chainsaw or a brush cutter accidentally touches the knife during work with the body. Clothes, work gloves, armor, etc. equipped with

For example, Patent Document 1 discloses protective clothing provided with an anti-saw protective layer containing a filler material made of fibers of a high-strength material.

JP-A-2018-527482

The above-mentioned technique can stop the rotation of the chainsaw blade by entwining the high-strength fiber layer contained in the clothes with the chainsaw blade when the chainsaw hits the body during the chainsaw work. However, in the conventional chainsaw pants, since the protective ability is secured by laminating a plurality of protective layers made of high-strength fibers, the fibers of the protective layer on the outermost surface side are the blades at the moment when the blades come into contact with each other. However, the fibers in the inner layer go out only after the fibers in the surface layer are pulled out. Therefore, the amount of fibers that can be instantaneously pulled out and entangled with the blade is limited, and there is a time lag before a sufficient amount of fibers are pulled out to stop the rotation of the blade.

Therefore, one object of the present invention is to provide a protective material having a higher protective effect than the conventional one.

According to the present invention, a protective material for preventing cuts can be obtained, which is characterized by having a ground structure and a loop-shaped pile portion locked to the ground structure.

According to the present invention, since a larger amount of fibers can be instantly popped out than before, it is possible to prevent injury when the blade hits the body.

It is a figure which shows the protective material 1 by the embodiment of this invention. It is a figure which shows the protective material 1 by the embodiment of this invention. It is a figure which shows the protective material 1 by the embodiment of this invention. It is a figure which shows the protective material 1 by the embodiment of this invention. It is a figure which shows the protective material 1 by the embodiment of this invention. It is a figure which shows the laminated body which used the protective material protection material 1 of this invention.

The contents of the embodiments of the present invention will be described in a list. The present invention has the following configurations.
[Item 1]
A protective material for preventing cuts, which comprises a ground structure and a loop-shaped pile portion locked to the ground structure.
[Item 2]
The protective material for preventing cuts according to item 1, wherein the pile portion is woven into the ground structure.
[Item 3]
The cut prevention protective material according to item 1 or 2, wherein at least one of the above-mentioned ground structure and the pile portion has an ear portion along the end portion.
[Item 4]
The cut prevention protective material according to any one of items 1 to 3, wherein at least a part of the ground structure and the pile portion contains high-strength fibers.
[Item 5]
The cut prevention protective material according to item 4, wherein the high-strength fiber contains an aramid fiber.
[Item 6]
The ground organization includes a first ground organization and a second ground organization.
The pile portion is arranged between the first ground structure and the second ground structure, and is arranged.
It is characterized in that it is locked to the first ground structure and the second ground structure, respectively.
The protective material for cut prevention according to any one of items 1 to 5.
[Item 7]
A cut prevention tool using the cut prevention protective material according to any one of items 1 to 6.
[Item 8]
A cut prevention tool using the cut prevention protective material according to any one of items 1 to 5.
The cut prevention protective material has the ground structure on only one side, and is arranged so that the surface of the ground structure is on the outer surface side when the cut prevention device is attached. Cut prevention tool.
[Item 9]
The cut prevention tool according to item 7 or 8, wherein the cut prevention tool is for a rotary blade operator.
[Item 10]
The cut prevention tool according to item 9, wherein the cut prevention tool is a chainsaw pants.

<Details of the embodiment>
Hereinafter, embodiments of the present invention will be described with reference to the drawings.

<Overview>
The protective material 1 of the present invention is characterized by having a pile portion 2.

As shown in FIG. 1, the pile portion 2 refers to a structure in which a so-called pile structure in which fibers are erected on a base cloth is woven. In the present invention, the pile is preferably loop-shaped. By having the pile portion 2, the length per fiber can be increased. By increasing the length of each fiber, the amount of fibers entwined with the blade can be increased instantaneously.

As shown in FIG. 1, the protective material 1 of the present invention includes a ground structure 3 and a pile portion 2 made of pile yarn locked to the ground structure 3. As the ground structure 3, known woven fabrics such as plain weave and twill weave can be used. The pile yarn is locked so as to be woven into the warp yarn or the weft yarn of the ground structure 3. In FIG. 1, the fibers constituting the ground structure 3 are illustrated in which pile yarns are woven at one-row intervals, but the intervals and densities at which the pile yarns are woven are not limited to this. For example, as shown in FIG. 2, the pile yarn may be woven into the two fibers once, and the pile yarn may be appropriately determined within the range in which the effect of the present invention can be obtained.

Further, as shown in FIG. 3, the protective material 1 is arranged between the first ground organization 3, the second ground organization 4, the first ground organization 3 and the second ground organization 4. A pile portion 2 locked to each of the first ground structure 3 and the second ground structure 4 may be included. According to this configuration, the volume of the fiber is increased, so that the cut prevention effect is further enhanced, and the loop portion of the pile portion 2 is locked and fixed to the second tissue 4 so that it is biased during use. It is held evenly and the protection performance becomes uniform.

Further, as shown in FIGS. 4 and 5, it is preferable that any of the ground structures 3, 4 and the pile portion 2 has an ear portion along the end portion. The selvage portion is a folded portion formed at the end portion of the cloth (in FIG. 4, the selvage portion 20 in the case of the pile portion 2 and the selvage portion 30 in the case of the ground tissue 3 and 4). FIG. 5 is a diagram in which only the ground structures 3 and 4 are taken out (pile portion 2 is omitted). "Along the edges" refers to the condition in which the ears are formed along at least a portion of the vertical or horizontal sides of the fabric. By forming the

ears

20 and 30, it is possible to weave fibers having a longer length per fiber without breaking the fibers at the ends. It is preferable that both the ground structures 3 and 4 and the pile portion 2 have the

ears

20 and 30 at the ends, but only the pile portion 2 or the ground structures 3 and 4 have the ears. You may.

As shown in FIGS. 4 and 5, when the ears are formed in the ground structures 3, 4 and the pile portion 2 to lengthen one fiber, the rotary blade hits depending on the design and shape of the protective clothing. It is conceivable that the fibers wrap around the exodermis (skin) of the wearer and press (sandwich) the outer skin (skin) of the wearer by instantaneously discharging all the fibers without interruption. In that case, it is possible to wrap the wearer's skin and prevent compression by cutting the fibers at the end (ear) at a constant length so as to have an appropriate fiber length.

The ground structures 3 and 4 and the pile portion 2 may be made of any material such as cotton, hemp, and chemical fiber. Polyester, nylon, acrylic and the like can be used as the chemical fiber. Further, it is desirable that at least one of the ground structures 3, 4 and the pile portion 2 is made of high-strength fiber-containing fibers. More preferably, both the ground structures 3, 4 and the pile portion 2 may be made of high-strength fiber-containing fibers. In this case, the ground structures 3 and 4 and the pile portion 2 may be made of the same type of high-strength fiber-containing fibers or may be made of different types of high-strength fiber-containing fibers. Further, only the pile portion 2 may be composed of high-strength fiber-containing fibers. In that case, other materials may be used as appropriate for the fibers constituting the ground structure. The high-strength fiber-containing fiber is a fiber containing 1% or more of high-strength fiber, preferably 5% or more, more preferably 10% or more, still more preferably 30% or more.

In the present invention, as the high-strength fiber, those usually used for cut prevention tools can be used, and those having toughness and high elastic modulus are preferable because of high cut prevention property. For example, aramid fiber, polyarylate fiber, polyparaphenylene benzobisoxazole fiber and the like can be used. Above all, it is preferable to use Kevlar (registered trademark) as the aramid fiber. The fiber may be monofilament or multifilament, but a multifilament having an appropriate diameter is preferable from the viewpoint of strength.

The pile length protruding from the ground structures 3 and 4 is not particularly limited, but is preferably 1 to 20 mm, more preferably 3 to 5 mm. When the pile length is equal to or more than the lower limit of the range, the fiber length per fiber becomes long, and a larger amount of fibers can be entangled when the rotary blade hits, and the cut prevention effect is enhanced. Further, when the pile length is not more than the upper limit value of the above range, the fibers are not too bulky when used for clothes and the like, and appropriate air permeability and ease of movement can be maintained.

Further, the average length of each fiber constituting the pile portion 2 can be set to be about 1.5 to 2.5 times the width of the protective material 1. For example, when used for chainsaw pants, when the cloth width of the thigh is, for example, 30 cm, the pile portion 2 is configured so that the length per fiber is about 45 cm to 75 cm on average. Can be done.

Next, a cut prevention device using the protective material 1 of the present invention will be described.

The protective material 1 of the present invention is used as a cut prevention tool used when working with a knife or metal. As the cut prevention tool, it can be used for clothes, gloves, arm covers, chaps, leg ties, shoes, shoe covers, hats, and the like. In particular, when it is used for clothes worn when working with a rotary blade such as a chainsaw or a brush cutter, the fibers constituting the pile portion 2 and the

ground structures

2 and 3 can be entangled with the rotary blade to prevent damage. Therefore, it is effective. The protective material 1 of the present invention may be used only for a part of the cut prevention tool. For example, when used for chainsaw pants, the protective material 1 of the present invention can be used only in the protective area such as the front thigh portion and the knee portion.

When used as a cut prevention tool, as shown in FIG. 6, additional layers can be provided on the inner surface side and the outer surface side in addition to the protective material 1 of the present invention. The material, thickness, and number of layers of the additional layer can be selected appropriately depending on the cut prevention tool. For example, when used for clothing such as chainsaw pants, the front portion of the leg is formed by laminating the inner layer 7 on the side closest to the skin, the protective layer 6 containing the protective material 1 of the present invention, and the outer layer 5 in this order. Can be configured. For the inner layer 7, it is preferable to use a mesh fabric having good breathability. As the mesh fabric, a known fiber material can be used, and for example, polyester or the like is used. Further, the outer layer 5 is preferably a strong and water-repellent fabric. As the outer layer 5, a known fiber material can be used, and for example, a fabric containing a material such as nylon, polyurethane, or cotton can be used. The protective layer 6 may contain one or more layers of the protective material 1 of the present invention, but may be composed of only one layer. According to the protective material 1 of the present invention, since one layer contains a sufficient amount of fibers, it is not necessary to stack a plurality of protective materials 1.

When the protective material 1 shown in FIG. 1 is used as a cut prevention tool, it can be used so that the surface of the ground tissue 3 is on the outer surface side (FIG. 6). In this case, since the surface of the ground structure 3 is on the outer surface side, the pile portion 2 is held evenly on the surface where the blade hits without being biased, so that the protective effect when the rotary blade hits becomes uniform, which is preferable. In addition, since the pile portion 2 faces the skin side when worn, it easily absorbs sweat and can be worn comfortably even during work in the summer.

On the contrary, it can also be used so that the surface of the ground tissue 3 is on the inner surface side. In this case, since the pile portion 2 is on the outer surface side when worn, it is likely to get entangled with the blade when it hits. Further, since the surface becomes the pile portion 2, the divergence is good and preferable.

According to the protective material 1 of the present invention, since the pile portion 2 formed by pile-weaving the fibers is included, the length of each fiber can be sufficiently lengthened. Therefore, even if the total amount of high-strength fibers used is the same or rather small as compared with the conventional product in which multiple layers of fabrics made of high-strength fibers are laminated, the moment the rotary blades come into contact with each other, Since the volume of fibers entwined with the blade and pulled out is large, the rotary blade can be stopped quickly.

The above-described embodiment is merely an example for facilitating the understanding of the present invention, and is not intended to limit the interpretation of the present invention. It goes without saying that the present invention can be modified and improved without departing from the spirit thereof, and the present invention includes an equivalent thereof.

1 Protective material 2 Pile part 3 First ground tissue 4 Second ground tissue 5 Outer layer 6 Protective layer 7

Inner layer

20, 30 Ears

Claims

A protective material for preventing cuts, which comprises a ground structure and a loop-shaped pile portion locked to the ground structure.
The protective material for preventing cuts according to claim 1, wherein the pile portion is woven into the ground structure.
The cut prevention protective material according to claim 1 or 2, wherein at least one of the above-mentioned ground structure and the pile portion has an ear portion along the end portion.
The cut prevention protective material according to any one of claims 1 to 3, wherein at least a part of the ground structure and the pile portion contains high-strength fibers.
The protective material for preventing cuts according to claim 4, wherein the high-strength fiber contains an aramid fiber.
The ground organization includes a first ground organization and a second ground organization.
The pile portion is arranged between the first ground structure and the second ground structure, and is arranged.
It is characterized in that it is locked to the first ground structure and the second ground structure, respectively.
The protective material for preventing cuts according to any one of claims 1 to 5.
A cut prevention tool using the cut prevention protective material according to any one of claims 1 to 6.
A cut prevention tool using the cut prevention protective material according to any one of claims 1 to 5.
The cut prevention protective material has the ground structure on only one side, and is arranged so that the surface of the ground structure is on the outer surface side when the cut prevention device is attached. Cut prevention tool.
The cut prevention tool according to claim 7, wherein the cut prevention tool is for a rotary blade operator.
The cut prevention tool according to claim 9, wherein the cut prevention tool is a chainsaw pants.