JPH10248604A - Ventilating shoe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable to discharge odor in a shoe outside and to prevent liquid outside such as water, etc., and particles such as dust or sand, etc., cannot invade into the shoe, by placing a thin board material made of ultrahigh molecular weight plastic which passes gas but not liquid between the shoe sole with ventilation holes and the insole. SOLUTION: Plural ventilation holes 22 are bored through a shoe sole 20, and a thin board material 40 of ultrahigh molecular weight plastic made by laminating a gas-permeable liquid-impermeable porous film of tetrafluoroethylene resin to woven fabric, nonwoven fabric, felt, net, etc., made of a substrate of fiber comprising polyamide, polyester, polyacrylate, etc., is placed between the shoe sole 20 equipped with ventilation holes 22 and a shoe insole 30. Thus odor or gas in the shoe main body 1 can be discharged outside and the inside of the shoe main body can be prevented from invasion of outside liquid such as water, etc., or particles such as dust, sand, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shoe having a breathable structure, and more particularly to a shoe sole and a shoe midsole provided with a vent hole in the sole and made of a material made of ultra-high molecular weight plastic having selective permeability. The present invention relates to a ventilated shoe having a structure laid between them.

[0002] It has been proved that a foot has a better sweating ability than considered by ordinary common sense. In particular, the soles of the feet have good sweating properties, and like other good sweating parts, it is required to devise sweat for maintaining health. Conventional shoes were not sufficiently thought about ventilation, so the feet were almost sealed when wearing the shoes. Therefore, when a long period of time elapses after wrapping a well sweatable foot in a hermetically sealed shoe, the generated sweat fills the shoe and the ventilation in the shoe is poor, so that the shoe is stuffy. Therefore, it was considered a problem to provide shoes with air permeability.However, maintaining ventilation inside the shoes and preventing moisture or dust on the road surface from entering the shoes are in a trade-off relationship. Was. Provision of pores in order to improve the ventilation of shoes has the inconvenience that rain (liquid), dust, earth and sand, and other particulate matter enter the shoes at the same time. Therefore, in the conventional ventilation shoes, the shape of the ventilation hole and the place where the ventilation hole is provided have been devised.

[0003] However, even if the shape of the ventilation hole is devised, it is difficult to invent a shoe having a sufficient ventilation structure, since it is important to have a structure for preventing the invasion of moisture and earth and sand. In addition, it is clear that the ventilation hole is optimally provided on the sole of the foot, whereas the ventilation effect cannot be expected even if the ventilation hole is provided in a portion near the ankle which does not come into contact with water or dust.
Some ventilation shoes have a ventilation hole in the sole for the purpose of natural ventilation, but they have not been practically used due to the problem of blocking moisture and dust.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a breathable shoe which is free from stuffiness and has a ventilation hole in the sole of the shoe and a selective permeability made of ultra-high molecular weight plastic so that rainwater or the like does not enter. TECHNICAL FIELD The present invention relates to a ventilation shoe having a structure in which a ventilation hole is covered with a material having a characteristic.

[0005]

In order to achieve the above object, a ventilation shoe according to the present invention comprises a plurality of ventilation holes formed in a sole of a shoe, and a gas formed so as to cover the ventilation hole portion. In this configuration, a thin plate made of ultra-high-molecular-weight plastic having permeability and not allowing liquid to pass therethrough is laid between the shoe sole provided with the vent and the shoe midsole. The permselective thin sheet material is a porous sheet of ultra-high molecular weight polyethylene resin that allows gas to pass through without allowing liquid to permeate. The base material is a thin plate or a fiber made of a polyamide, polyester, polyacryl, polyolefin, polyimide, aramid, PPS, PTFE, PFA or glass, which is made of a thin plate or a porous film of ethylene tetrafluoride resin that allows gas to permeate without passing through liquid Woven fabric, non-woven fabric, felt,
It is also possible to use a laminated thin plate with the net. Also, the hole drilled in the sole of the shoe may be a structure that is drilled at an angle that is more inclined than the vertical from the bottom of the shoe, or the inner diameter of the hole may be different at the joint surface between the bottom of the shoe and the midsole of the shoe. It is possible.

[0006]

In order to achieve the above object, a ventilation shoe according to the present invention has a plurality of ventilation holes formed in the sole of the shoe and a selectively permeable thin plate made of ultra-high molecular weight plastic. Because it is a configuration laid between the shoe sole and the shoe midsole, odor, sweat, water vapor, etc. in the shoe are provided on the shoe sole through a thin plate made of selective permeation from the shoe inner sole. It is discharged from the hole to the outside of the shoe. Further, the thin plate material is of a size to cover the air hole portion, and the thin plate material having permselectivity is a thin plate material made of a porous sheet of an ultra-high molecular weight polyethylene resin that allows gas to permeate without allowing liquid to permeate, or , Made of a material such as a thin plate made of a porous film of ethylene tetrafluoride resin, polyamide, polyester, polyacryl, polyolefin, polyimide, aramid, PPS, PTFE, PF
A, woven fabric, nonwoven fabric based on various fibers such as glass,
Since it is a composite product that is laminated with a felt and a net, it is a structure that can effectively remove stuffiness of feet due to water vapor and the like, and also effectively prevent moisture such as rain from entering the shoes from the outside. .

[0007] Further, since the ventilation holes are formed at an angle inclined from the vertical from the bottom of the shoe, or the inside diameter of the holes is different at the joint surface between the bottom of the shoe and the midsole of the shoe, pebbles, gravel, etc. Can be prevented from being caught in the ventilation holes. The ventilation shoes having the above configuration are not limited to men's shoes, women's shoes, children's shoes, and sports shoes, and can be applied to all kinds of shoes.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing the construction of a ventilation shoe according to the present invention. FIG. 1 is a side view of a ventilation shoe according to the present invention. As shown in FIG. 1, the ventilation shoe 10 includes a shoe sole 20 provided with a ventilation hole, an insole 30 and a thin plate material 40 having selective permeability. FIG. 2 is a perspective view showing a shoe sole and a shoe midsole of the present invention, and FIG.
And FIG. 3b is a cross-sectional view of a vent hole formed in a shoe sole.

The shoe body 1 comprises the upper and side surfaces of the shoe, and the sole of the shoe.
A plurality of ventilation holes 22 are formed in the zero. Moisture inside the shoe is discharged from the shoe bottom through the ventilation hole to the outside. The ventilation hole 22 is formed through the sole of the shoe, and the hole extends from the bottom of the shoe to the inside of the shoe. In the embodiment shown in FIG. 2, the ventilation holes 22 are formed in six places concentrated on the plane of the shoe tip. However, the number of the ventilation holes is not limited to this embodiment. However, the present invention is not limited to the flat end face in this embodiment, and may be formed so as to be unevenly formed on the entire surface of the shoe sole or other portions. However, it is perforated in the sole of the shoe, and it is irrelevant whether or not another hole is provided on the upper surface or side surface of the shoe as in the related art.

The angle at which the ventilation hole is formed does not necessarily have to be set at a right angle to the shoe sole, but rather, as shown in FIG. It is desirable to be drilled at an inclined angle. Further, it is not necessary that the diameters of the holes are all constant over the entire length (width) of the sole, and as shown in FIG. 3B, the inner diameter of one hole is changed in the middle to form a funnel. Is also possible. This makes it possible to prevent intrusion of pebbles and sand.

The shoe midsole 30 is a thin plate laid inside the shoe. The shoe midsole 30 is interposed between the foot on which the shoe is mounted and the shoe sole, so that the shoe sole directly contacts the ground. It is a material that protects the foot by preventing the covered foot from directly bonding to the sole of the shoe. It has the same shape as the bottom surface inside the shoe and is almost the same shape as the last.

The selectively permeable thin plate material 40 is made of the sole 20.
And the shoe insole 30. The shape of the selectively permeable thin plate member 40 only needs to be large enough to cover at least the plurality of air holes 22 as shown by a dotted line in FIG. However, since the ventilation hole is drilled through the shoe sole, the part with the hole is permeable to moisture,
It is necessary that a thin plate material having permselectivity be firmly fixed between the sole and the shoe so as to close the hole. In this example,
The thin plate member 40 is formed so as to cover a front end plane provided with six holes. The sheet material has a shape that covers the holes, and has a shape that differs depending on the positions and the number of the holes. Further, the shoe may have substantially the same shape as the shoe sole so as to cover the entire bottom surface of a normal shoe.

[0013] The selectively permeable material is permeable to gas,
It is a material having a structure that does not allow liquid to permeate, and the material used in this embodiment is made of an ultra-high molecular weight plastic molded body disclosed in Japanese Patent Publication No. 7-55541 (Japanese Patent Application No. 2-24129). In this embodiment, Sun Map SUNMAP (trademark) manufactured by Nitto Denko Corporation is used. This material is made of ultra-high molecular weight polyethylene resin (UHMWPE = Ultra High Molecular Weight Polyethene).
It is made of a porous sheet of ylene), and the method is to fill ultra-high molecular weight plastic powder into a shape retainer, sinter with steam heated to a temperature equal to or higher than the melting point, and then cool and mold. The ultra-high molecular weight plastic produced by this method is a homogeneous porous body having a porosity of about 5% to 70%, though there are some. The product is a block-shaped molded product, which is cut to a predetermined thickness by a lathe or the like to form a thin plate made of ultrahigh molecular weight plastic, which is a sheet-shaped molded product.

A thin plate made of ultrahigh molecular weight plastic is excellent in breathability, moisture permeability and waterproofness. Furthermore, in addition to its properties such as excellent chemical resistance, friction resistance, and electrical properties, it has properties such as low friction properties and light diffusion properties, and also has excellent workability. More specifically, it is an open-cell, porous sintered body, has slidability, and is chemically stable, and has chemical resistance that is not affected by most chemicals such as acids and alkalis. Also, in addition to diffusing light at a wide angle due to the difference in light refractive index within the bubble, it is also non-toxic and harmless in an organized manner.
Heat sealing, punching, shaping, and antistatic processing are also possible.

There are many types of materials that are selectively permeable, but the materials used in the present invention are:
It is a thin plate material made of a porous sheet of the above-mentioned ultrahigh molecular weight polyethylene resin (UHMWPE). This material is 1
It is a material having a structure in which hundreds of millions of micropores are present in a square centimeter. It is a material having the property of transmitting gas such as water vapor and air, but not transmitting liquid such as solid fine particles and water or aqueous solution. In the present invention, a thin plate made of ultra-high-molecular-weight plastic is used, but other than a porous sheet of ultra-high-molecular-weight polyethylene resin (UHMWPE), a porous film of ethylene tetrafluoride resin formed in a thin plate shape It may be a material. More specifically, a porous material of woven fabric, nonwoven fabric, felt, net and ethylene tetrafluoride resin based on fibers such as polyamide, polyester, polyacryl, polyolefin, polyimide, aramid, PPS, PTFE, PFA, and glass A material obtained by forming a thin plate by laminating films can also be used.

[0016]

Since the ventilation shoe according to the present invention has the structure described in detail above, it has the following effects. (1) Since a plurality of air holes are formed in the sole of the shoe and a thin plate made of ultra-high molecular weight plastic having selective permeability covers the air hole portion, water vapor and odor generated in the shoe can be easily removed. Exhausted from the sole. In addition, since a selectively permeable thin plate material is laid between the shoe sole provided with the vent and the shoe midsole, odors and gas inside the shoe are discharged to the outside, but water or the like outside the shoe is discharged. The liquid or particulate matter such as dust and gravel does not enter the shoe. (2) The gas (moisture and odor) inside the shoes is discharged to the outside, but liquids such as water, soil and gravel are not introduced into the shoes. (3) Since the selectively permeable thin plate is made of a thin plate made of a porous sheet of ultra-high molecular weight polyethylene resin (UHMWPE) or a thin plate made of a porous film of ethylene tetrafluoride resin, it is easy to obtain and practical. Because of its properties and durability, it is the best material for ventilation shoes to be put to practical use. (4) Ultra-high molecular weight polyethylene resin (UHM) that is made of a selectively permeable thin plate material that allows gas to permeate without permeating liquid
WPE) a thin sheet material consisting of a porous sheet or a porous film of ethylene tetrafluoride resin and polyamide, polyester,
Although it is a thin plate laminated and laminated with woven fabric, non-woven fabric, felt, and net based on fiber made of polyacryl, polyolefin, polyimide, aramid, PPS, PTFE, PFA, and glass, it is a thin plate material It can effectively prevent the discharge of moisture and the intrusion of liquid. (5) Since the ventilation holes are formed at an angle that is more inclined than the vertical from the bottom of the shoe, the danger of stepping on nails or the like can be avoided. It can be implemented for children and sports. (6) Also, since the inside diameter of the ventilation hole is different at the joint surface between the shoe bottom and the shoe midsole, pebbles, gravel, etc., enter from the ventilation hole provided in the shoe sole or enter the hole to close the hole. Don't worry.

[Brief description of the drawings]

FIG. 1 is a side view of a ventilation shoe according to the present invention.

FIG. 2 is a perspective view showing a shoe sole and a shoe midsole of the present invention.

FIG. 3a is a cross-sectional view of another embodiment of a vent hole drilled in a shoe sole;

FIG. 3b is a cross-sectional view of yet another embodiment of a vent hole drilled in a shoe sole.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Shoe main body 10 Ventilated shoes 20 Sole 22 Vent hole 30 Midsole 40 Thin plate

Claims (6)

[Claims] 1. A thin plate made of a selectively permeable ultra-high molecular weight plastic which has a plurality of ventilation holes formed in a shoe sole and which is permeable to a gas and permeable to a liquid, is formed so as to cover the ventilation holes. A ventilation shoe laid between a shoe sole provided with a ventilation hole and a shoe midsole 2. The breathable shoe according to claim 1, wherein the selectively permeable thin plate material is a porous sheet of an ultra-high molecular weight polyethylene resin that allows gas to permeate without permeating a liquid. 3. The breathable shoe according to claim 1, wherein the selectively permeable thin plate material is a thin plate made of a porous film of ethylene tetrafluoride resin which allows gas to permeate without permeating a liquid. 4. The thin plate material having permselectivity is a porous film of ethylene tetrafluoride resin, which allows gas to permeate without permeating liquid, and polyamide, polyester, polyacryl, polyolefin, polyimide, aramid, PPS, PTF
The breathable shoe according to claim 1, wherein the shoe is a thin plate obtained by laminating a woven fabric, a nonwoven fabric, a felt, and a net having a base material of E, PFA, and glass. 5. The ventilation shoe according to claim 1, wherein the ventilation hole is formed at an angle that is inclined from the bottom of the shoe. 6. The ventilation shoe according to claim 1, wherein the inside diameter of the ventilation hole is different at the joint surface between the shoe bottom and the shoe midsole.