JP3041010U - Antistatic shoes - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To provide a shoe which is electrically conductive but does not feel uncomfortable when worn, and which does not change the wearing feeling from ordinary shoes. SOLUTION: A cover (1) made of a material generally used for shoes such as natural leather or synthetic leather, an insole (2) formed of a conductive material, and a main sole formed of a conductive material. (3), the peripheral edge of the lower surface of the insole (2) and the peripheral edge of the upper surface of the outsole (3) are adhered by a non-conductive adhesive (4 ′), and these peripheral edges are excluded. The antistatic shoe (10) is configured such that the inner surface of the bottom surface of the sole (2) and the inner surface of the upper surface of the outsole (3) are in direct contact with each other without an adhesive. The static electricity generated in the person who wears was passed through the insole (2) and the outsole (3) from the sole of the wearer's foot, and was removed to the floor surface or the like.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to an antistatic shoe for removing static electricity generated in a human body and its worn article.

[0002]

[Prior art]

 Today, clothing and shoes are manufactured using materials such as synthetic resins, synthetic fibers, and synthetic rubber.However, these materials are highly insulating materials, and static electricity is naturally generated during wear, and these materials are used. Various problems occur when static electricity is sparked. For example, there are disasters caused by sparks in factories and work sites filled with highly flammable gas, destruction of electronic components by sparks in electronic equipment manufacturers, and discomfort such as shocks to human bodies at the time of sparking.

As a measure against the above problem, a shoe having conductivity has been conventionally devised. For example, by attaching an insole made of a non-conductive material to a book sole made of a conductive material, a metal reaching the inside of the book sole is exposed to the upper surface of the insole with respect to this adhesive. By appropriately inserting the studs, the sole of the wearer and the outsole of the wearer are electrically connected through the studs, so that the static electricity generated on the human body and the wearing object is passed through the shoes to the floor surface, etc. There is something that can be removed outside.

[0004]

[Problems to be solved by the device]

 However, in the conventional electrically conductive shoes as described above, when the head of the metal tack protrudes above the upper surface of the insole, the head of the tack locally presses the sole of the foot. , The wearing feeling is bad, and even if the studs are prevented from protruding from the upper surface of the insole, the hardness of the part where the studs are inserted and the part where the studs are not inserted are different and it is not uniform. However, there are drawbacks such as feeling uncomfortable, and these drawbacks have caused various harmful effects on the human body.

In order to solve the above problems, the inventor of the present invention has devised a shoe which is electrically conductive but does not feel uncomfortable when worn, and which does not change the feeling of wearing from ordinary shoes.

[0006]

[Means for Solving the Problems]

 An antistatic shoe according to the present invention comprises a cover, an insole made of a conductive material, and an outsole made of an electrically conductive material. Is adhered by a conductive adhesive.

In addition, as an antistatic shoe, the shoe includes a cover, an insole made of a conductive material, and an outsole made of an electrically conductive material. It is also an effective means to adhere the peripheral portion of the upper surface with a non-conductive adhesive so that the inner portion of the lower surface of the insole and the inner portion of the upper surface of the book sole are in direct contact.

With the above structure, the upper surface of the insole is smooth and no unevenness is generated, and the hardness of the adhesive between the insole and the outsole is uniform throughout.

[0009]

[Embodiment of the invention]

 Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings of FIGS.

FIG. 1 shows a first embodiment, in which (10) is an antistatic shoe according to the present invention. (1) is a cover, which is made of a material generally used for shoes, such as natural leather or synthetic leather. (2) is an insole and is made of a conductive material. (3) is the outsole, which is also made of a conductive material. (4) is a conductive adhesive, and the lower surface of the insole (2) and the upper surface of the outsole (3) are bonded over the entire surface by this conductive adhesive (4).

By configuring the shoe (10) as described above, the static electricity generated in the person who wears the shoe is charged from the sole of the wearer's foot to the conductive insole (2) and the adhesive. It passes through the layer (4) and the outsole (3), and is removed to the floor surface and the like. Therefore, while wearing the shoe (10), static electricity generated in the human body and the wearing article always leaks to the outside, so that the static electricity does not accumulate in the human body and the wearing article. Therefore, static electricity will not be sparked even when the human body or the worn article comes into contact with other articles while wearing the shoes (10).

[0012] Generally, it is said that the electric resistance when static electricity leaks and does not accumulate should be 10 ⁹ ohms or less, and in order to prevent electric shock, the safety limit current for dynamic electricity is usually 20 mA. It is said that if the voltage is 200 V and the electric resistance is 10 ⁵ ohms, an electric shock accident can be prevented. Therefore, static electricity is removed, suitable electrical resistance of shoes that may also prevent an electric shock, it is sufficient to design to fall in the range of 10 ⁵ to 10 ⁹ ohms. In this embodiment, the total electric resistance of the insole (2), the outsole (3) and the adhesive (4) needs to be 10 ⁹ ohms or less to remove static electricity, and also to prevent electric shock. In consideration of the above point, it is preferable to design the electric resistance so as to fall within the range of 10 ⁵ to 10 ⁹ ohms.

Next, materials for the insole (2), the outsole (3) and the adhesive (4) will be described. The material for the insole (2) is pulp or non-woven fabric to which conductive material such as carbon or nickel is added. A nonwoven fabric is preferable as a material for the insole because it is excellent in tearing, tension, bending, abrasion, water absorption, water discharge and the like. The material used for the outsole (3) is rubber or sponge with conductive material added. It is preferable to use rubber as a material for the outsole, because it is resistant to abrasion and easily mixed with a conductive material. As the material for the adhesive (4), use a rubber-based or urethane-based adhesive with a conductive material such as carbon added. Both rubber-based and urethane-based adhesives can be used without problems, but they should be selected appropriately depending on the place of use of the shoe.

FIG. 2 shows a second embodiment, in which (10) is an antistatic shoe according to the present invention. (1) is a cover, which is made of a material generally used for shoes, such as natural leather or synthetic leather. (2) is an insole and is made of a conductive material. (3) is the outsole, which is also made of a conductive material. (4 ') is a non-conductive adhesive, and the non-conductive adhesive (4') bonds the lower peripheral edge of the insole (2) and the upper peripheral edge of the outsole (3). The inner portion of the lower surface of the insole (2) and the inner portion of the upper surface of the outsole (3) except for these peripheral portions are in direct contact with each other without an adhesive.

By configuring the shoe (10) as described above, the static electricity generated in the person wearing the shoe is charged from the sole of the wearer's foot, and the conductive insole (2) and outsole are respectively present. It passes through (3) and is removed to the floor surface and the like. Therefore, while wearing the shoes (10), static electricity generated in the human body and the wearing article is always leaked to the outside, so that the static electricity does not accumulate in the human body and the wearing article. Therefore, there is no possibility that static electricity will be sparked even when the human body or the worn article comes into contact with other articles while wearing the shoes (10).

The reason why the first embodiment is configured as described above is as follows. The conductive adhesive used in the first embodiment is more expensive than the non-conductive adhesive, and the lower surface of the insole and the upper surface of the outsole adhere to each other in terms of the functionality of the shoe. The second embodiment has an economical effect as compared with the first embodiment, since the adhesive can be saved if it is unnecessary and only the necessary peripheral portion is adhered.

In terms of electric resistance, in the present embodiment, the total electric resistance of the insole (2) and the outsole (3) needs to be 10 ⁹ ohms or less in order to remove static electricity. In addition, it is preferable to design so that the electric resistance falls within the range of 10 ⁵ to 10 ⁹ ohms in consideration of prevention of electric shock.

Next, materials for the insole (2), the outsole (3) and the adhesive (4 ′) as described above will be described. The material for the insole (2) is pulp or non-woven fabric to which a conductive material such as carbon or nickel is added. When a non-woven fabric is used, it is preferable as a material for the insole because it is excellent in tearing, pulling, bending, abrasion, water absorption, water discharge and the like. The material for the outsole (3) is rubber or sponge to which a conductive material is added. It should be noted that rubber is preferable as a material for the outsole because it is resistant to wear and a conductive material is easily mixed therein. As the material for the adhesive (4 '), a rubber-based or urethane-based adhesive to which a conductive material such as carbon is added is used. Both rubber-based and urethane-based adhesives can be used without problems, but they should be selected as appropriate depending on the place of use of the shoe.

[0019]

[Effect of the invention]

 As described above, the antistatic shoe of the present invention is composed of a cover, an insole made of a conductive material, and an outsole made of a conductive material. Since the upper surface of the outsole is bonded with a conductive adhesive, the sole of the wearer is electrically connected to the insole of the shoe, the adhesive layer and the outsole of the shoe. Since static electricity generated on the human body and clothing can be removed to the outside such as the floor through shoes, various problems that occur when static electricity is sparked are eliminated, and there is no feeling of discomfort when worn, making it a normal shoe. It has the effect of not changing the feeling of wearing.

In addition, the antistatic shoe of the present invention comprises a cover, an insole made of a conductive material, and an outsole made of an electrically conductive material. If the inner surface of the bottom of the insole and the inner surface of the upper surface of the insole are in direct contact with each other by adhering the periphery of the upper surface of the insole with a non-conductive adhesive, this antistatic shoe will Since the sole of the wearer is electrically connected to the midsole and the outsole of the shoe, in addition to the above-mentioned effects, there is an effect of being excellent in economic efficiency.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a shoe showing a first embodiment of the present invention.

FIG. 2 is a sectional view of a shoe showing a second embodiment of the present invention.

[Explanation of symbols]

 1 ……………… Covers 2 …………… Conductive insole 3 ……………… Conductive outsole 4 …………… Conductive adhesive 4 ′ ………… Non-conductive Adhesive 10, 20 ... Antistatic shoes

Claims (2)

[Utility model registration claims] 1. A cover, a midsole formed of a conductive material, and a main bottom formed of a conductive material, wherein the bottom surface of the midsole and the top surface of the bottom are formed of a conductive adhesive. Antistatic shoes characterized by being bonded together. 2. A cover layer, an insole formed of a conductive material, and a book sole formed of a conductive material, wherein the peripheral portion of the lower surface of the mid bottom and the peripheral portion of the upper surface of the book bottom are not formed. An antistatic shoe, characterized in that the inner side of the lower surface of the insole and the inner side of the upper surface of the outsole are in direct contact with each other by bonding with a conductive adhesive.