JP3046529U - Antistatic footwear - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a healthy and comfortable footwear which has an antistatic effect, has a high shoe sole durability, and reduces a shock when worn. SOLUTION: It comprises a shell (A), an insole (B), an insole (C) and an outsole (D), wherein the insole and the outsole are formed of a conductive material, It is formed of a cushioning material having a plurality of punched holes (C1), a center core is adhered to a front central portion (B1) of the back surface of the inner bottom with a conductive adhesive, and an edge portion (B2) of the back surface of the inner bottom. The inner side edge (A1) of the shell is adhered with a conductive adhesive to the outer surface side of the core and the inside of the punched hole adhered to the front center of the inner bottom surface, and the edge of the inner bottom surface. A conductive adhesive (E) is applied to the entire outer surface side edge (A2) of the upper cover adhered to the upper part and the exposed surface of the inner bottom surface, and the outsole is adhered to the footwear for antistatic. Was formed.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to an antistatic footwear for removing static electricity generated on a human body and a worn article thereof.

[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.

In order to solve the above-mentioned problem, shoes having conductivity have been conventionally devised. For example, the insole and the outsole are formed of a conductive material, and the peripheral edges of both are adhered with a non-conductive adhesive. In some cases, electricity is supplied by direct contact with the outsole, so that the static electricity generated on the human body and the wearable object can be removed to the outside such as the floor surface through shoes.

[0004]

[Problems to be solved by the invention]

 However, in the conventional antistatic shoes as described above, the insole and the outsole are adhered only at the peripheral edge, and not in the center, so that the weight of the insole during walking increases due to weight shift with respect to the sole. And the outsole constantly move in the center, and since the center is not bonded, there is a gap between the insole and the outsole. It will be easier. Therefore, there was a disadvantage that the insole was damaged immediately. In addition, there was a disadvantage that the cushioning was poor at the center of the shoe sole where the overall weight was applied, so that it was not comfortable to wear.

Further, if a conductive material is used also for the heel body in the sole of the shoe, a conductive effect can be further exerted. However, in order to reduce the weight of the entire shoe, a lightweight synthetic resin or colloid is used for the heel body. It is common to use a material with a low specific gravity, such as a metal, and it is inappropriate to use a material with a large specific gravity, such as a conductive material.

In order to solve the above-mentioned problems, the present inventor has proposed a shoe having an antistatic effect, a high durability of a shoe sole, a good comfort, and a lightweight shoe as a whole. Issued.

[0007]

[Means for Solving the Problems]

 The antistatic footwear according to the present invention comprises a shell, an insole, a core and an outsole, the insole and the outsole are formed of a conductive material, and the core has a plurality of punched holes. It is made of a cushioning material, and the center core is attached to the front center of the back of the insole with conductive adhesive, and the inner side edge of the shell is attached to the edge of the back of the insole with conductive adhesive. And the inside of the punching hole, which is attached to the center of the front part of the back of the insole, the inside edge of the punching hole, the outer side edge of the shell attached to the edge of the back of the insole, and the insole A conductive adhesive is applied to the entire exposed surface of the back surface and the outsole is adhered.

[0008] With the above configuration, since the inner bottom and the outsole made of a conductive material are entirely adhered with a conductive adhesive, the conductive effect is high, and the front center of the back surface of the inner bottom is also provided. Since the cushioned core is attached to the part, the impact received by the human body during walking etc. is reduced, and the comfort is improved.

The heel body fixed to the rear center of the outsole of the antistatic footwear constructed as described above has a heel body made of a lightweight material, and a conductive heel sole member attached to a lower portion thereof. And a side member wound and adhered to the side surface. The side member has an upper end in contact with the outsole, and a lower end in contact with the conductive heel sole member and is adhered with a conductive adhesive. And the static electricity can be removed from the heel.

[0010]

[Embodiment of the invention]

 Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to FIGS. 1 to 3 show a first embodiment, and FIG. 4 shows a second embodiment.

FIG. 1 is an exploded view of the antistatic footwear according to the present embodiment, and FIG. 2 is a view of a state in which a midsole with a center core stuck thereto and a shell are viewed from the back surface. 3 is a cross-sectional view in the width direction of the front part of the shoe sole in the completed antistatic footwear.

In FIG. 1, (A) is a shell, which is made of a material generally used for footwear such as natural leather and synthetic leather. (B) is an insole, which is formed of a conductive material. (C) is a core, which is made of cushioning urethane or the like, and has a plurality of punched holes (C1). (D) is the outsole, which is made of a conductive material. (E) is a conductive adhesive, the main component of which is chloroprene rubber, a modified graphite, and the main solvent is toluene. The distance between terminals is 1 cm, the applied voltage is 1.0 × 10 ⁸ ohm under an applied voltage of 500 V. It is an adhesive having electrical conductivity.

As shown in FIG. 1, the antistatic footwear according to the present embodiment includes a shell (A), an insole (B), an inner core (C), and an outsole (D). (C) is adhered to the front center (B1) of the back surface of the midsole (B) with a conductive adhesive (E). Then, as shown in FIG. 2, the edge (B2) on the back surface of the midsole (B) and the edge (A1) on the inner surface of the shell (A) are adhered by a conductive adhesive (E). You. The outsole (D) is attached to the insole (B) to which the core (C) and the shell (A) are attached in this manner. In the state shown in FIG. 2, first, the outer side of the core (C) attached to the front center part (B1) of the back surface of the insole (B), A conductive adhesive (E) is applied to the outer edge (A2) of the shell (A) adhered to the edge (B2) of the back surface and the entire exposed surface of the back surface of the midsole (B). Next, a conductive adhesive (E) is applied inside the punched hole (C1) so as to fill the hole. The conductive adhesive (E) is also applied to the upper surface (D1) of the outsole (D) shown in FIG. Thereafter, after a lapse of a predetermined time, the midsole (B) coated with the conductive adhesive (E) on the entire back surface and the upper surface (D1) of the outsole (D) are positioned and bonded as described above, In this embodiment, the antistatic footwear (I) is usually completed through a process of attaching heels and attaching components and accessories. In this embodiment, the outsole (D) to which the heel is retrofitted is used, but the outsole (D) may be one in which the heel is integrally attached in advance.

In the antistatic footwear manufactured as described above, the insole (B) made of a conductive material that comes into contact with the foot of the human body is also made of a conductive material, and the outsole is grounded to a floor or the like. (D) and the conductive adhesive (E), the human body and the floor surface are electrically energized, and the static electricity generated in the human body passes through the antistatic footwear to the floor. Flows on surfaces. Therefore, while wearing this footwear, static electricity generated on the human body and the wearing object always leaks to the outside, so that static electricity does not accumulate on the human body and the wearing object. Therefore, there is no danger that static electricity will be sparked even if the human body or the worn object comes into contact with another object while the footwear is worn.

[0015] Incidentally, in general, static electricity leaks are the electrical resistance may be an under 10 ⁹ ohms or more when not accumulate, and for electric shock prevention is usually safe limit current for moving electricity and 20mA are, resistance in the case of voltage 200V is the prevent electric shock if 10 ⁵ ohms. 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 the present embodiment, the insole (B), the total electrical resistance of the bottom (D) and adhesive (E), for removing static electricity, must be no more than 10 ⁹ ohms, also prevent electric shock In view of the above, it is preferable to design the electric resistance so as to fall within the range of 10 ⁵ to 10 ⁹ ohms.

Next, the materials of the midsole (B) and the outsole (D) will be described. As the material for the midsole (B), use a material obtained by adding a conductive material such as carbon or nickel to pulp or nonwoven fabric. The use of a nonwoven fabric is preferable as the material of the insole because it is excellent in tearing, tension, bending, abrasion, water absorption, water discharge, and the like. As the material of the outsole (D), a material obtained by adding a conductive material to rubber or sponge is used. The use of rubber is preferable as the material of the outsole because it is resistant to abrasion and easily mixes a conductive material. As the material of the conductive adhesive (E), a material obtained by adding a conductive material such as carbon to a rubber-based or urethane-based adhesive can be used in addition to the conductive adhesive described in the above embodiment. For the core (C), urethane is used in the above embodiment, but any material having cushioning properties can be used.

FIG. 4 is a central longitudinal sectional view of a shoe according to a second embodiment of the antistatic footwear according to the present invention. In this embodiment, the heel body (F) is fixed to the outsole (D) of the antistatic footwear (I) of the first embodiment.

The heel body (F) includes a heel body (F1), a conductive heel sole member (F2), and a side member (F3). It is crimped to the center of the rear part and fixed with nails (G). The heel body (F1) is made of a lightweight material such as a synthetic resin or a natural material such as cork or wood to reduce the weight of the heel. The conductive heel sole member (F2) is formed of the same conductive material as the outsole (D), and is attached to a lower portion of the heel body (F1) to form a heel bottom. It is. The side member (F3) is made of leather or synthetic leather or the like, and is arranged such that an upper end thereof is in contact with the outsole (D) and a lower end thereof is in contact with the conductive heel sole member (F2). By applying the conductive adhesive (E) to the entire contact surface of the outsole (D), the heel body (F1) and the conductive heel sole member (F2) with which the side member (F3) contacts, the side member (F3) is It is adhered to the sole (D), the heel body (F1) and the conductive heel sole member (F2). The glossy surface of the side member (F3) bonded to the outsole (D) and the conductive heel sole member (F2) is peeled off with a treating agent or buffing to improve the adhesiveness. And glue.

[0019] The antistatic footwear (II) that constitutes the heel body (F) and is fixed to the outsole (D) as described above includes a conductive outsole (D), an adhesive (E), and a heel. Due to the bottom member (F2), the outsole (D) and the conductive heel sole member (F2) that comes into contact with the floor surface or the like are energized, and in addition, as shown in the first embodiment, the human body Since the insole (B) and the outsole (D), which are made of a conductive material, are in a conductive state, the static electricity generated in the human body also flows from the heel body (F) to the floor or the like. Become. Therefore, the antistatic footwear (II) in this embodiment has extremely excellent energization efficiency because all of the bottom surface, that is, the outsole and the heel contact the floor surface or the like. Moreover, even if the heel height is high or the wide heel is attached, the heel body itself is lightweight as described above, so that it is comfortable to wear and does not burden the foot. In addition, when the heel is solely used, in order to supplement the strength of the shoe sole and provide toughness between the heel and the outsole in contact with the floor surface, a metal steel bar (B3) generally called a shank spring is used. It is attached to the back surface of B).

[0020]

[Effect of the invention]

 As described above, the antistatic footwear of the present invention comprises a shell, an insole, a core, and an outsole, and the insole and the outsole are formed of a conductive material. It is made of a cushioning material with punched holes, and the center core is attached to the center of the front part on the back of the inner bottom with a conductive adhesive, and the inner edge of the shell is conductive on the edge of the back of the inner bottom. The outer surface of the core and the inside of the punching hole attached to the center of the front of the back of the insole, and the outer surface of the edge of the cap attached to the edge of the back of the insole The bottom of the inner bottom is coated with a conductive adhesive on the entire exposed surface and the bottom is adhered to the bottom. Because it is worn, the midsole of the shoe, the adhesive layer and the outsole of the shoe are electrically connected. Therefore, the static electricity generated in the human body and the wearable object can be removed to the outside such as a floor surface through the footwear, so that various problems that occur when the static electricity sparks are solved. In addition, the cushioned core, which is attached to the front center of the back of the insole, reduces the impact of the foot when walking or landing, so it is more comfortable to wear than ordinary footwear. In addition, since the insole and the outsole are integrally bonded over the entire surface, the durability of the entire shoe sole is increased.

Further, as the heel body fixed to the rear center of the outsole of the antistatic footwear constructed as described above, a heel body made of a lightweight material, and a conductive heel sole member attached to a lower portion thereof. The side member wound and adhered to the side surface, the upper end of the side member is in contact with the outsole, and the lower end is in contact with the conductive heel sole member and adhered by a conductive adhesive, In addition to the effect, even if the heel is made larger, the overall weight of the shoe can be reduced and static electricity can be removed from the heel. Become.

[Brief description of the drawings]

FIG. 1 is an exploded view of an antistatic footwear according to a first embodiment of the present invention.

FIG. 2 is a rear view of the antistatic footwear according to the first embodiment of the present invention, in which a midsole with a center core stuck thereto and a shell are stuck.

FIG. 3 is a cross-sectional view in a width direction of a front portion of a shoe sole of the completed antistatic footwear according to the first embodiment of the present invention;

FIG. 4 is a longitudinal sectional view of the completed antistatic footwear according to the second embodiment of the present invention;

[Explanation of symbols]

 I ... Antistatic antistatic footwear according to the first embodiment II ... Antistatic antistatic footwear according to the second embodiment A ... Cover A1 ... Inner surface of cover Side edge A2 Outer side edge of shell B B ... Conductive insole B1 Front central part of insole back surface B2 ... Insole of insole back surface Part B3 Metallic steel bar attached to the back surface of the inner bottom C Core core C1 having cushioning property D1 punching hole in core core D Conductive Outsole D1 Upper surface of outsole E Conductive adhesive F Heel body F1 Heel body F2 Heel body F2 Conductive heel sole member F3 … Side member G ………… Nail

Claims (2)

[Utility model registration claims] An inner sole and an inner sole are made of a conductive material, and the inner core is made of a cushioning material having a plurality of punched holes. The center is attached to the front center of the back of the insole with conductive adhesive, and the inner side edge of the shell is attached to the edge of the back of the insole with conductive adhesive. The whole of the outer surface side of the core and the inside of the punching hole attached to the front center part of the back surface, the outer surface side edge of the shell attached to the edge of the inner bottom back surface, and the exposed surface of the inner bottom back surface An antistatic footwear, characterized in that a conductive adhesive is applied to the sole and the outer sole is adhered. 2. A cushion comprising a shell, an insole, an insole, an outsole, and a heel body, wherein the insole and the outsole are formed of a conductive material, and the insole has a plurality of punching holes. It is formed of a material, and the center is attached to the center of the front part on the back of the insole with conductive adhesive, and the inner side edge of the shell is attached to the edge of the back of the insole with conductive adhesive. The outer surface side of the core and the inside of the punching hole adhered to the front center of the insole bottom, the outer surface side edge of the shell attached to the edge of the insole bottom, and the exposed surface of the insole back A conductive adhesive is applied to the whole and the outsole is stuck, and the heel body is fixed to the rear center of the outsole and attached to the heel body made of lightweight material and the lower part Conductive heel sole member, and a side member wound and adhered to the side surface, and the side member has an upper end in contact with the outsole and a lower end in contact with the conductive heel sole member, and has a conductive adhesive. Anti-static footwear, characterized by comprising more adhesive.