JPH08173205A - Air circulating type internal sole - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air-circulating type insole for shoes achieving a forcibly air-circulating structure by putting a simple air circulating structure in shoes without changing the structure of the shoes. SOLUTION: The main body 1 of the insole is made of an elastic material such as polyurethane resin excellent in extensibility and provided with a pump chamber 2 formed in the rearward position to suck or exhaust air and an air passage way 6 formed at the front position and connected to the pump chamber 2. A suction valve 8 as a one-way valve sucking air is provided in the pump chamber 2 and an exhaust valve 9 as a one-way valve is put between the pump chamber 2 and the air passage way 6. A bottom skin 5 is stuck on the bottom face of the insole body 1 and an upper skin 3 in which air ejection holes 4 are formed, is stuck on the upper face of the insole body 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insole inserted into shoes such as athletic shoes, leather shoes, and boots. More specifically, the invention relates to an insole which is inserted into a shoe to forcibly circulate the air in the shoe. An air-circulation insole that prevents sweat and moisture from building up a bad odor, prevents skin diseases such as athlete's foot, and provides a comfortable walking feeling to improve the health of pedestrians. It is a thing.

[0002]

2. Description of the Related Art Conventional sports shoes, leather shoes and the like use materials such as synthetic resin, synthetic fibers and leather as outer skins, and therefore have a structure in which air cannot flow into the shoes. Many methods have been proposed to solve such problems.

[0003]

However, most of these proposals change the structure of the shoe in order to allow air to flow into the shoe.
Since many work steps are added to the shoe manufacturing process, the manufacturing period of the shoe becomes long and the manufacturing cost increases.

Further, since the structure of each type of shoes such as leather shoes, sports shoes, and boots is different, a great amount of cost is required to provide a unique air circulation structure suitable for those types of shoes. There was a problem.

The present invention is intended to solve such a problem, and one of the objects thereof is to force air circulation by laying the insole of a simple structure in the shoe without changing the structure of the shoe. To provide an air-circulating insole that can achieve a structure, has a simple manufacturing process and is inexpensive to manufacture, and can be applied to existing shoes, which contributes to improving the efficiency of resource utilization. Is.

Another object of the present invention is to provide a highly compatible air circulation type insole capable of realizing air circulation in shoes regardless of the structure of shoes such as athletic shoes, leather shoes, and boots. .

Still another object of the present invention is to provide a highly convenient air circulating insole which can be detachably installed in a shoe and can be removed from the shoe in winter.

[0008]

In order to achieve the above object, the present invention is directed to an insole body having a pump chamber for sucking and discharging air formed in the rear, and an insole attached to an upper surface of the insole body. An epithelium in which a large number of air injection holes are perforated, and a lower skin adhered to the bottom surface of the insole body, and an air flow passage communicating with the pump chamber is formed forward in the insole body. An intake valve having an intake pipe for introducing external air is provided in the pump chamber, and an exhaust valve for exhausting air in the pump chamber to the air flow passage is provided between the pump chamber and the air flow passage. It is characterized by being

The insole body and the epithelium, or the insole body and the underskin may be molded as a single body.

In addition, the insole body is formed only on the rear part, and the epithelium and the lower skin are adhered to the insole body so that the air layer and the air flow passage are formed on the front part. Good.

Further, an air flow passage securing means may be arranged in the air flow passage.

An insertion bag into which the intermediate bottom is inserted may be formed on the bottom surface of the insole.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of an air circulation type insole according to the present invention will be described below in detail with reference to the accompanying drawings.

As shown in FIGS. 1 and 2, the first aspect of the present invention is as follows.
The insole A according to the embodiment is adhered to the insole body 1 in which a pump chamber 2 for sucking and discharging air is formed in the rear, and the upper surface of the insole body 1, and a large number of air injection holes 4 are punched. An insulative epithelium 3 and a lower skin 5 adhered to the bottom surface of the insole body 1, and an air passage 6 communicating with the pump chamber 2 is formed in the insole body 1 so as to extend forward. Room 2
A suction valve 8 having a suction pipe 7 for introducing external air
An exhaust valve 9 for discharging the air in the pump chamber 2 to the air flow passage 6 is provided between the pump chamber 2 and the air flow passage 6.

The insole body 1 is preferably made of an elastic material such as polyurethane so that the pump chamber 2 expands and contracts smoothly when walking, and the rear portion where the pump chamber 2 is located is the front portion. Only when it is formed higher, the expansion and contraction of the pump chamber 2 becomes smooth, and the minimum air circulation amount can be secured.

The epithelium 3 is preferably molded as a single body from the same material as the insole body 1 in order to facilitate manufacturing. The lower skin 5 is firmly adhered to the insole body 1, and a hard material such as a polyurethane film is used. Insole body 1 and under skin 5 for ease of manufacture
And may be formed as a single body.

The intake and exhaust valves 8 and 9 provided in the insole body 1 are one-way valves. The intake valve 8 operates so that air only flows into the pump chamber 2, and the exhaust valve 9 is an air flow passage. 6 operates so that air is discharged.

The operation of the insole thus constructed according to the present invention will be described in detail below.

When the insole A of the present invention is inserted into the shoe S and the shoe is worn, the insole A is compressed by the weight of the wearer and contracts, so that the pump chamber 2 of the insole main body 1 contracts. Therefore, the air in the pump chamber 2 is discharged into the shoe S through the exhaust valve 9 and the air flow passage 6 through the air injection hole 4 of the epithelium 3. Such an air discharging action is schematically shown in Fig. 3 (b).

When the shoe S moves away from the ground during walking, the insole body 1 in the shoe S is restored to its original shape by the elastic restoring force, and the pump chamber 2 is returned to its original height. Restored. At this time, since the exhaust valve 9 is a one-way valve, the exhaust valve 9 is blocked in the direction of air inflow into the pump chamber 2, and the pump chamber 2 is opened while the outside air is introduced into the pump chamber 2 only through the intake valve 8. It is to be restored to the height of. Such an air intake action is schematically shown in FIG.

The expandable / contractible insole body 1 is compressed by the weight of the wearer, and the intake valve 8 and the exhaust valve 9 provided in the insole body 1 are made of a hard material. Therefore, there is a problem in that the wearer does not contract and presses the sole of the wearer. In order to solve such a problem, as shown in FIG. 4 which is the second embodiment of the present invention, it is preferable to form a protrusion 1a by protruding a concave portion at the inner center of the insole main body 1 '. That is, by providing the intake valve 8 and the exhaust valve 9 on the projecting portion 1a, the intake valve 8 and the exhaust valve 9 are located in the concave portion of the sole of the wearer's foot, so that the weight of the wearer is hardly exerted. It will disappear.

Therefore, by providing the exhaust valve 9 and the intake valve 8 in this way, it is possible to eliminate the inconvenience to the wearer and to obtain the effect that the operation of these valves is not hindered by the walking motion of the wearer. become.

FIG. 5 shows an insole A ″ according to a third embodiment of the present invention, and FIG. 6 is an exploded perspective view of the insole A ″. In the insole A ″, the insole body 10 is formed only in the rear portion and does not extend over the entire insole A ″, and in the front portion, a cushioning air layer 11 is provided between the epithelium 30 and the inferior skin 50. And air flow passages 60, 60 'are formed. The air flow passage 60 is for exhaust, and the air flow passage 60 'is for intake.

An air flow passage securing means 61 is arranged in the air flow passages 60 and 60 'to prevent the air flow passages 60 and 60' from being closed due to the weight of the wearer. As the air flow passage securing means 61, a spring having good flexibility is used.

As described above, according to the third embodiment of the present invention, the length of the insole body 10 is short, and since the air flow passage is not formed in the insole body 10, it is easy to manufacture and the epithelium 30 is used. Since the lower skin 50 and the lower skin 50 are heat-bonded, the insole A ″ can be easily manufactured and the manufacturing cost can be reduced. Further, since the cushioning air layer 11 is formed, the cushioning effect during walking is excellent, and the fatigue of the wearer's feet is reduced.

FIG. 7 shows a fourth embodiment of the present invention. In order to prevent movement of the insole A ′ ″ in the shoe, an intermediate sole B is inserted into the bottom surface of the lower skin 50. An insertion bag 51 is formed so as to be fixed in the shoe.

On the other hand, when it is not necessary to circulate the air into the shoe as in winter, the air circulation action can be stopped by taking out and storing the insole A of the present invention.

[0028]

As described above, in the shoe having the insole according to the present invention, the outside air is sucked into the shoe by repeating the expansion and contraction of the pump chamber during walking. The air inside the shoes is exchanged without interruption as a result, and no bad odor is trapped inside the shoes, and the feet are dry compared to when wearing conventional shoes. Since it is kept in a state, the inside of the shoe can be kept clean.

Further, since the air circulation type insole according to the present invention does not need to change the structure of the shoe, it does not require a great deal of cost and effort to manufacture the shoe, and can be manufactured at a low cost. As a result, it can be supplied as an inexpensive product that anyone can purchase, and it can be installed regardless of the type of shoes, and it has an excellent effect.

[Brief description of drawings]

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

FIG. 2 is a perspective view of an insole according to the first embodiment of the present invention.

3A and 3B show a state in which the insole according to the first embodiment of the present invention is installed and operated in a shoe, FIG. 3A is a schematic cross-sectional view of an air intake state, and FIG. It is a schematic sectional drawing of a state.

FIG. 4 is a perspective view showing an insole according to a second embodiment of the present invention.

FIG. 5 is a perspective view of an insole according to a third embodiment of the present invention.

FIG. 6 is an exploded perspective view of an insole according to a third embodiment of the present invention.

FIG. 7 is a sectional view of an insole according to a fourth embodiment of the present invention.

[Explanation of symbols]

 1, 10 Insole body 2 Pump chamber 3, 30 Epithelium 4 Air injection hole 5, 50 Lower skin 6, 60, 60 'Air flow passage 7 Suction pipe 8 Suction valve 9 Exhaust valve 11 Buffer air layer 51 Insertion bag 61 Air Means for securing flow passage A, A ', A ", A'" Sole S shoes

Claims (5)

[Claims] 1. A midsole main body (1) having a pump chamber (2) for sucking and discharging air, and a plurality of air injection holes (4) adhered to an upper surface of the midsole main body (1). ) Has a perforated epithelium (3) and a lower skin (5) adhered to the bottom surface of the insole body (1), and the pump chamber (2) is provided in front of the insole body (1). An air flow passage (6) communicating with the pump chamber (2) is extended, and a suction valve (8) having a suction pipe (7) for introducing external air is provided in the pump chamber (2). An air circulation type insole characterized in that an exhaust valve (9) for discharging the air in the pump chamber (2) to the air flow passage (6) is provided between the air flow passage (6). 2. The insole body (1) and the epithelium (3) or the insole body (1) and the inferior skin (5) are molded as a single body. Air circulation type insole described. 3. The insole body (1) is formed only in a rear part, and an air layer (11) and an air flow passage (6) are formed in a front part.
0,60 ') is formed so that the epithelium (30) and the inferior skin (50) are adhered to the insole body (1). Insole. 4. The air according to any one of claims 1 to 3, wherein an air flow passage securing means (61) is arranged in the air flow passage (60, 60 ′). Circulating insole. 5. An intermediate bottom (B) is provided on the bottom surface of the insole (A ″).
An air circulation insole according to any one of claims 1 to 3, characterized in that an insertion bag (51) into which is inserted is formed.