KR900001387B1 - Air cushion shoe sole - Google Patents

Abstract

The air cushioned shoe sole is made by (a) blowing a tubular enclosure of synthetic plastic material; (b) pressing the enclosure between two mould halves; (c) inflating the enclosure whilst between the mould halves to force it into contact with the interior walls of the mould. The air cushioned sole better absorbs impact shock.

Description

Air cushion shoe sole and manufacturing method

1 is a cross-sectional view of a mold and an extruder for manufacturing the air cushion sole of the present invention.

Figure 2 is a perspective view including a partial incision showing the rear window portion of the shoe sole produced by the present invention.

3 is a perspective view of a partial incision of another embodiment showing the rear sole portion of a shoe sole made by the method of the present invention.

4 is a perspective view of another embodiment showing the rear window portion of a shoe sole manufactured by the method of the present invention.

5 is a perspective view of the sole of the present invention, a perspective view of the sole and the rear window coupled to, having two air valves, including a partial incision.

Figure 6 is a perspective view of the partial incision of another embodiment showing the rear sole portion of the sole of the present invention.

7 is a cross-sectional view taken along line 7-7 of FIG. 5 for showing an air valve and an elastic ring according to the present invention.

8 is a cross-sectional view taken along line 8-8 of FIG. 6 for showing an air valve and a tubular ring according to the present invention.

9 is a second seal showing the simultaneous manufacture of an air cushion and an outsole of the present invention.

FIG. 10 is a cross sectional view of a shoe sole made as a mold of FIG.

11 is a plan view of a shoe sole buried air cushion of the present invention.

FIG. 12 is a side view including a partial cross section taken along line 12-12 of FIG.

Figure 13 is a cross-sectional view of a third embodiment showing the simultaneous manufacture of the air cushion and the sole and the shoe upper of the present invention.

FIG. 14 is a perspective view of a partial incision of a shoe made as the mold of FIG.

15 is a cross-sectional view of the air cushion in which the bottom portion of the air cushion of the present invention is the sole of the shoe.

16 is a perspective view of two cavity air cushions having respective air valves as another embodiment of the air cushion of the present invention.

FIG. 17 is a cross-sectional view taken along line 17-17 of FIG.

18 is a perspective view including a partial incision of a tubular air cushion embedded in the sole of the present invention.

FIG. 19 is a plan view of a shoe sole in which a tubular air cushion of FIG. 18 is embedded.

20 is a perspective view of an air valve of the present invention.

Figure 21 is a plan view and a side view showing a state injecting compressed air through the needle in the air cushion sole of the present invention is inserted into the mold.

22 is a plan view of the rear window portion of the two-stage air cushion of the present invention.

23 is a cross-sectional view taken along the line A-A of FIG.

24 is a cross-sectional view taken along the line B-B of FIG.

25 is a cross-sectional view of the two-stage air cushion sole of the present invention, which is a cross-sectional view of the rear window portion of the air cushion under no load.

FIG. 26 is a cross-sectional view of FIG. 25 which is primarily a section in the case of receiving compression.

FIG. 27 is a cross sectional view of FIG. 25 similar to FIG.

28 is a cross-sectional view of the rear window portion of the pumped air cushion of the present invention.

FIG. 29 is a sectional view similar to FIG. 28, with a load applied thereto.

30 is a plan view of FIG. 29 showing a discharge state of air from the rear window portion to the front window portion.

FIG. 31 is a cross-sectional view showing a state in which the load is returned to its original state after removing the load from the load in FIG. 29; FIG.

32 is a plan view identical to FIG. 30, showing a suction state of air.

33 is a plan view showing the front window portion of the air cushion having the flexibility of the present invention.

34 is a side view of FIG.

35 is a cross-sectional view taken along the line A-A of FIG.

36 is a cross-sectional view taken along the line B-B in FIG.

FIG. 37 is a comparison diagram of a conventional air cushion manufactured by joining two pieces of air cushion manufactured by the blow molding method of the present invention.

* Explanation of symbols for main parts of the drawings

1: extruder 2, 20: air cushion

4: outsole 5: upper shoe

6: tube type air cushion 10, 11: mold

21: groove 22: air valve

23: flange 101, 111: protrusion

211: hole 221: fan ring

222: tubular ring

The present invention relates to a shoe sole and a manufacturing method for manufacturing the shoe sole.

In general, a shoe should have its characteristics depending on the conditions used, for example, to protect the wearer's leg from impact when falling, jumping or falling off due to the characteristics of the athletic sport, for example. Sports shoes have to have impact resistance and elasticity to alleviate the impact.

Also the impact resistance of sports shoes. Impact resilience depends on the ductility of the material of the sole and, moreover, the weight of the shoe is directly affected by the weight of the sole.

Accordingly, attempts to give lightweight and elasticity of sports shoes have been made in various ways, and accordingly, in the manufacturing industry of sports shoes, development has been continued to manufacture sports shoes with lighter weight and better shock absorption.

Currently, lightweight, elastic materials such as polyurethane are used as the sole material, but this material has a certain density and elasticity, and because the weight of each individual wearing sports shoes is different, the load concentrated on the sole Fundamentally framed for each individual

In other words, current sports shoes cannot be adjusted to fit the specific characteristics of the wearer's activities or fit to the individual's feet or body weight, nor can they be individually tailored, but are manufactured only for the common matters of different wearers. It was to be.

In addition, the sole is formed by combining two or more materials having different elasticity to prevent damage to the foot. Such soles may change the arrangement position of these materials at the time of manufacturing the sole with two or more materials having different properties, but cannot be changed once manufactured, and the characteristics are always the same to suit the needs of the user. I could not match.

Another produces shoes with air cushions, which has the advantage that the air cushion acts as a shock absorber, for example, when the wearer is running and steps on a stone, the force is locally raised on the sole. This upward force was distributed evenly throughout the sole of the wearer wearing the shoe through the cavity of the air cushion to absorb the upward force by the air cushion.

However, the above air cushion is generally filled with air at a predetermined pressure when manufactured at the factory, and has no means for adjusting the pressure of the air cushion of the shoe once manufactured.

For example, U.S. Patent No. 2,080,469 discloses an air cushion, but when a hole is punched in the air cushion, the force for vertically supporting the air cushion is lost, thereby making the air cushion flat and unusable. will be.

In addition, U.S. Patent No. 3,005,272 discloses attaching a valve for a tire to a shoe sole by installing a hole in an air cushion. Not only does this have to go to a tire repair shop to inflate the soles, but when the holes are drilled, the air cushions become flat.

In addition, U.S. Patent No. 4,219,945 discloses embedding a cushion cavity in a foamable material and filling the cushion cavity with a special gas. However, when the cushion cavity is also drilled, the force supporting the cushion cavity vertically is lost. Will be.

In addition, U.S. Patent No. 4,263,728 is provided with two stages of air cushions to absorb the shock applied to the sole. Again, when the air cushion was punched out, it became flat and lost the function of the air cushion.

Therefore, according to the conventional technique described above, even if a hole is punched in the air cushion, and even if the hole is repeatedly drilled, the air cushion shoe which can support the air cushion vertically and continue to be used cannot be manufactured.

Moreover, in the above-described conventional technique, since the air cushion is injected into the air cushion at a predetermined pressure and sealed at the manufacturing plant, the air pressure cannot be adjusted thereafter, and a metal tire valve or another type of air valve is also used. However, such a metal tire valve is to be installed on the side of the shoe sole not only affects the performance of the shoe, but also has a defect that can be easily detected by the wearer.

Another valve typically uses a one-way valve, so it is not possible to adjust the air filled in the air cushion to the wearer's requirements, so that the wearer cannot select and wear a shoe suitable for him.

Therefore, in the above-described conventional technique, when the pressure charged in the cavity of the air cushion becomes more than a predetermined value, the air is automatically leaked through the air valve, thereby providing an automatic air leakage means which absorbs the shock that causes the pressure increase. There was nothing at all.

In addition, the conventional method for producing the air cushion is two or more processes. In other words, the air cushion is made by dividing the two parts into a process of sealing them, which leads to a high production cost and waste of materials.

In the method of manufacturing the air cushion of the present invention, the cross section of the air cushion is essentially square and manufactured by blow molding, and the vertical support force of the cushion is determined by the configuration and thickness of the elastic material forming the cushion cavity. The thickness is about 0.5 mm to 2 mm.

The element of the vertical support force of the air cushion is the number of vertical support parts formed in the form of a pair of grooves (protrusions on the inner side) which are symmetrical when forming the air cushion, and the vertical support force of the material forming the cushion is f = 1 / It is based on the 2ks formula.

Where f is the average compressive force, k is the stiffness coefficient of the elastic potential energy of the material to be compressed, and s is the compressed distance of the material to be extruded.

When the air cushion of the present invention is manufactured by blow molding, an extruded elastic material is extruded in the form of a slightly larger tub (pipe) in a compressor, and the extruded tub is circular by supplying air into the extruded tub. A pair of molds are provided on both sides of the extruded tubule, and the shape of the air cushion is formed inside the mold.

The extruded tube is placed in the center, and the mold is closed on both sides, and the tube is filled with air to some extent by the supply of the above air, and compressed air is supplied through the hole formed in the mold. If you infuse it with a cushion,

In addition, when the blow molding is performed, the already formed sole is inserted into a mold on one side, and an adhesive is applied to the outsole in contact with the extruded tubular extruded material and blow molding is performed. At the same time, the air cushion is glued to the sole.

In the same way, the upper part of the shoe can be bonded at the same time to form the air cushion.

In addition, the air cushion of the present invention forms at least one cylindrical tube on the side when the mold is formed, the air is inserted into the valve attached to the air valve, this air valve is a needle for the air injection used in a conventional ball The air can be injected and at the same time when the air filled in the cavity of the air cushion is above a predetermined pressure, the air is automatically provided with a means for leaking, the predetermined pressure of the air is 40-100psi Preferably, it is about 20-40psi.

In addition, the air cushion can be separated into two or more cavities, and an air valve can be attached to each of the cavities to inject air at different predetermined pressures into the cavities of the respective air cushions. It is different from the cushion.

In addition, the two-stage air cushion of the present invention can be manufactured by blow molding differently from US Patent No. 4,263,728, the two-stage air cushion is the center portion than the edge portion

In addition, when a flat sole is bonded to the two-stage air cushion, an air passage is formed in the outsole so that the two-stage air cushion serves as an air pump to allow air to flow in and out of the shoe sole. .

In addition, the air cushion of the present invention may be embedded by encapsulating the air cushion in the foam material in order to improve the appearance and reinforce the vertical support force.

In the air cushion of the present invention, several grooves, that is, several protrusions are formed on the surface thereof, and the height of the protrusions is the same as the vertical height of the air cushion so that the protrusions serve as vertical support portions.

In addition, by forming a thick bottom portion of the air cushion of the present invention can be used as the sole of the shoe that is in contact with the bottom surface, and also by forming the upper surface of the air cushion in a flat plane, the person wearing this shoe to uniformly weight the air cushion By distributing it, the vertical stability of the air cushion can be improved.

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

The air cushion of the present invention has a cavity therein, and is molded and manufactured by blow molding, as shown in FIG.

In FIG. 1, the air cushion is a molding step, and the molds 10 and 11 on both sides are divided, and the molds 10 and 11 are reciprocated to the left and right (in FIG. 1).

The projections 101 and 111 are protruded on the mutually opposite inner surfaces of the mold 10 and 11, respectively, and a pair of grooves 21 are symmetrically viewed from the surface of the air cushion.

The elastic material used for molding the above air cushion is selected from the following.

That is, polyurethane, polyethylene / ethylene vinyl acetate copolymer, polyester elastomer, cloned polyethylene, polyvinyl chloride, chlorosulfonated polyethylene, neoprene and the like, and preferred are polyurethane or ethylene vinyl acetate copolymer.

In addition, the air cushion is filled with a shock absorber, and the shock absorber can be used as a liquid, a gas, or a combination thereof. It is preferable to use air as a gas and water as a liquid.

When the air cushion is encapsulated and embedded in the expandable elastic material, the elastic material may be polyurethane, polyethylene / ethylene vinyl acetate copolymer, neoprene or polyester, and the like, or polyurethane or polyethylene / ethylene vinyl acetate copolymer. It is desirable.

One embodiment of the manufacturing method of the air cushion of the present invention as shown in FIG. The divided molds 10 and 11, which are manufactured in a blow mold manner, are spaced apart from each other, and the extruder 1 extrudes the above-mentioned elastic material into the tubular body, and at the same time a gas, for example, air into the tubular body being extruded Extruding while discharging, the extruded tubular elastic material is always extruded in a circular relationship.

In addition, a cavity is formed in the mold 10 and 11, and the cavity is opposed to each other.

When the extruded elastic material is placed between the pair of molds 10 and 11 formed as described above, and the molds 10 and 11 are mutually matched, the tubular elastic material is transferred to the molds 10 and 11. The air discharged into the elastic material while being sealed by the mold is also sealed by the molds 10 and 11 so that the molds 10 and 11 are shaped into shapes, but at this time, the air inside the elastic material is insufficient. When the complete molding is not achieved, the hollow body is inserted into the cylindrical tubing formed by the cylindrical spaces formed on both sides of the mold 10 and 11, and the compressed air is supplied thereto. The elastic material inserted into the cavity of the 11) is molded into the same shape as the mold 10 and 11 as it is brought into close contact with the inner wall of the cavity of the mold 10 and 11 by the pressure of the air. Molding by separating the molds 10 and 11 Is taken out of the air cushion (2).

In addition, since the elastic material extruded from the extruder 1 is heated, it is not necessary to apply additional heat thereto.

As shown in FIGS. 2 to 4, the air cushion 2 formed by blow molding as described above has a rectangular cross section, has a cavity therein, and the mold 10, 11 of the mold A plurality of grooves 21 are symmetrically formed on the surface of the air cushion 2 by the projections 101 and 111, and the pair of grooves 21 serve as vertical supports, and the air cushion ( The upper surface of 2) is flat.

Due to the vertical support by the groove 21, it is possible to support the weight without inflating the air cushion (2).

In addition, when the air cushion 2 is molded by the blow molding described above, a shock absorber such as air or water can be injected into the internal pressure of about 40 psi. The cushion 2 is inflated outwardly.

5 and 6 show that the air valve 22 is inserted into the cylindrical tubs formed on both sides of the air cushion 2, and FIGS. 7 and 8 show respective cross sections.

The center rod of the air valve 22 is formed, and a flange 23 is formed at one end of the center rod, and several cutouts are formed in the flange 23.

The center rod of the air valve 22 is inserted into the cylindrical tube formed in the air cushion, and the center line of the tube and the center line of the center rod of the air valve 22 are concentric with each other. Has a passage in communication with the cavity inside the air cushion 2, and when the passage is inserted into the flange 23, the flange 23 prevents the air valve 22 from coming out of the tub. do.

As shown in FIG. 7, a plurality of elastic ring 221 rings are inserted into cylindrical tubs formed on both sides of the air cushion 2, or as shown in FIG. 8. By fitting the pipe ring 222 which is an elastic material to the web, the shock absorber filled in the cavity inside the air cushion 2 is prevented from leaking to the outside.

The size and number of the ＂O＂ ring 221 or the tubular ring 222 is the impact that is filled in the cavity of the air cushion 2 when the pressure of the cavity of the air cushion 2 reaches more than a predetermined value. Absorbers, for example, are arranged to allow air to leak through the passages inside the tubs formed on both sides of the air cushion 2.

That is, the shock absorbing material filled in the cavity of the air cushion 2 is pressurized through the cutout formed in the flange 23 of the air valve 22. As a result, the center rod of the air valve 22 and the tube are described above. Leaks to the outside through the gap between the inner wall of the, while at the same time against the elastic force to squeeze inwardly of the ＂O＂ ring or the tubular ring 222 while slightly expanding the gap The size and number of the ＂O＂ ring 221 or the tubular ring 222 is determined so as to leak.

This is a means of automatically leaking out when the pressure of the shock absorber filled in the cavity of the air cushion 2 becomes above a predetermined value.

That is, the compression force acting inwardly of the ＂O＂ ring or tubular ring prevents leakage of the shock absorber filled into the cavity of the air cushion, but when the pressure of the shock absorber exceeds a predetermined value, it acts inwardly. It becomes larger than the compressive force, so that the shock absorber leaks to the outside.

In addition, by inserting a needle generally used for injecting air into a competition ball to the center rod of the air valve 22, air, water or a combination thereof can be easily injected into the cavity of the air cushion (2), accordingly The air cushion 2 can be easily inflated at a predetermined pressure.

Therefore, when the wearer excessively charges the shock absorber such as air into the cavity of the air cushion 2 described above, or when the wearer steps on a stone, the shock absorber filled in the cavity of the air cushion 2, for example The air absorbs the above-mentioned shock and at the same time, excess pressure from the cavity of the air cushion 2 is automatically leaked to the outside as described above.

6 and 8 show the air cushion 2 attached to the rear window of the shoe, and the upper surface is slightly concave, and also shown in FIGS. 7 and 8

9 shows a second embodiment of the manufacturing method of the present invention, in which a preformed rubber sole 4 is inserted into a mold 10 on one side of a divided mold 10, 11. The sole 4 is provided with a plurality of holes, through which the protrusions 101 protruding inside the mold 10 penetrate to form recesses 21 in the air cushion 2, The projections 111 are also protruded in the mold 11 so as to face the grooves 11.

In addition, when the adhesive is applied between the sole 4 and the rubber cushion 2 molded as an elastic material, the air cushion 2 is molded as the mold 10 and 11 by the blow molding method described above. As the air cushion 2 is attached to the sole 4, the molding is performed, and the cross-section of the shoe sole formed as above is illustrated in FIG. 10. 11 and 12 show that the air cushion 2 is embedded in a foamed polyurethane, which is a shoe sole made by injection molding the above-described material for the air cushion 2.

The air cushion 2 is provided with a hole 211 formed in a thin portion formed between the grooves 21 which are symmetrical with each other, and this groove 21 is formed when injection molding the foamed polyurethane material with respect to the air cushion 2. Air in the air is discharged through the hole 211 to fill the groove 21 with the foamable material.

Therefore, since the foamed material is filled in the groove 21, the air cushion 2 can be removed.

13 shows a third embodiment of the manufacturing method of the present invention, in which a sole 4 is inserted into a mold 10 on one side of a pair of molds 10 and 11 to be divided. The shoe 11 is placed in the mold 11 on the other side, and the shoe mold 51 is inserted into the shoe upper part 5, and the sole 4 and the shoe upper part 5 are also provided. When the adhesive is applied to the bottom surface of the mold, the elastic material is extruded as described above, and the molds 10 and 11 are combined to form the air cushion 2 in a blow molding manner. The sole 2 and the upper shoe 5 are bonded to the cushion 2 at the same time, resulting in a complete shoe.

The shoe manufactured as described above is shown in FIG. 14, and in particular, the air cushion 2 can be seen that the nose part is formed in the front part of the shoe, and thus, for decorative purposes in the front part of the shoe. The nose portion may be formed by injection molding the material corresponding to the nose portion with respect to the air cushion 2.

FIG. 15 is configured to thicken the bottom of the air cushion 2 so as to be used as a sole of a shoe. The air cushion 2 is placed on the mold 11 by placing the upper shoe 5 on the mold 11 by the method shown in FIG. Molding produces a complete shoe at the same time as it is molded.

In addition, such an air cushion may be manufactured by the method shown in FIG. 1, and the shoe upper part may be adhered to an upper surface thereof to manufacture a shoe.

In addition, the above-mentioned air cushion serves as the sole and the air cushion of the shoe, so the material of the air cushion should be selected to have tensile strength and wear resistance.

Next, the air cushion 2 shown in FIGS. 16 and 17 has two independent cavities 201 and 202 formed therein, each of which has a respective air valve 22. )

Therefore, each of the cavities 201 and 202 of the air cushion 20 can be filled with a shock absorbing material at a different pressure, and adjusting the pressure to a predetermined value at this time is performed as described above. The pressure of each of the cavities 201 and 202 can be selectively adjusted by the check ring 221 inserted to the outside, and when the pressure reaches a predetermined value or more, the pressure is automatically leaked to maintain the pressure at a predetermined value. The air cushion 20 is configured to selectively adjust the pressure of the cavities 201 and 202, respectively, according to the specificity of the sport performed by the wearer.

18 and 19 simplifies and mechanizes the air cushion. The air cushion 6 is encapsulated in a square tube shape, and at the same time, an air valve 22 is inserted therein. The air cushion 6 is to be embedded in the foam sole (3) to be used.

21 is a blow molding method used in the manufacturing method of the present invention once again, the air cushion (2) is inserted into the pair of mold (10) (11) showing the molding process, the air cushion described above The air cushion is in close contact with the shape of the mold 10 and 11 by filling compressed air through a needle, which is a hollow body, to cylindrical tubs formed on both sides of the shape of the mold 10 and 11. It shows the process of manufacturing the same air cushion (2).

22 to 24 show the two-stage air cushion 2 of the present invention, and show only the rear window portion.

The air cushion (2) is formed on the center of the upper surface, the lower surface is concave, and when used by adhering the sole 4, the upper surface is convex as shown in FIG. When it is used to adhere the flat sole 4 as shown in Figure 28 will be the air cushion to act as a pump.

25 to 27 are shown by combining the convex heel sole 4 of the height of the interruption to the air cushion (2) in order to show a two-stage cushioning action sequentially.

That is, FIG. 25 shows a no-load state, FIG. 26 shows a light load state in which the center of the air cushion 2 is downward, and FIG. 27 shows a heavy load state in a light load state. It will be appreciated that the entirety of the cushion 20 is deformed.

28 to 32 show that the air cushion 2 pumps by attaching a flat sole 4 to the air cushion of the heel shown in FIG. 22, and FIGS. 30 and 32 show the front window portion. Air passages are formed on the floors, and a plurality of through holes are laid at the ends thereof so as to communicate between the air cushions 2 and the soles 4 at the rear window portions, so that the soles 4 of the air cushions 2 are as shown in FIG. When it comes into contact with the air introduced therethrough is discharged through the air passage through the air as shown in FIG. 30, and again as shown in FIG. 31 when the air cushion 2 and the sole 4 fall apart as described in FIG. Through the air passages and through the air intake of the outside air through the inside of the shoe to circulate the air inside the shoe to bring the effect of cooling the wearer's feet cool.

33 to 36 show a plan view and a cross-sectional view when the air cushion 2 of the present invention is applied to the front window portion, the configuration and operation of which are the same as those described above, except that the air cushion is the front window portion. In order to give flexibility in the transverse direction of this air cushion, a plurality of cavities were formed parallel to the transverse direction.

In order to communicate each of the above cavities with the air valve 22, a hole is formed and a channel shape (see FIG. 36) recessed vertically in the longitudinal direction thereof is formed to give a restoring force in the above-mentioned horizontal direction. .

37 is a view comparing the conventional air cushion 2 and the conventional air cushion. The air cushion 2 of the present invention is shown on the left side of FIG. 37, and the air cushion 2 of the present invention is described above. The vertical support is formed by the mutually symmetric groove 21 so that a shock absorbing material is injected into the cavity formed therein and used in the expanded state. Even though a hole is drilled in the air cushion 2, the vertical support is used. The conventional air cushion is manufactured by joining two pieces of pin-like materials to each other, as shown on the right side of FIG. 37, and is vertically supported when a hole is drilled therein. There is no compo- nent to make a flat deformation that makes it unusable.

The above-described embodiments of the present invention are intended to illustrate the present invention, and are not intended to limit the present invention, and many types and modifications are possible from the above-described embodiments, but they are naturally within the scope of the present invention.

Claims (23)

A method of manufacturing an air cushion sole, having at least one cavity in a rectangular cross section therein, a plurality of protrusions protruding and at least an inner top surface being planar, and at least one cylindrical space on one side An elastic material is placed between a pair of molds having a portion and at the same time divided, and the divided molds are joined to form an air cushion in the shape of an emuls, and an air valve is formed in a cylindrical tube formed by the cylindrical space. Inserting a shock absorber into the cavity inside the air cushion, and forming a means in the air valve to automatically leak the pressure of the shock absorber filled in the cavity of the air cushion above a predetermined value. Method of manufacturing an air cushion shoe sole characterized in that it is manufactured by. The elastic material according to claim 1, wherein the elastic material is extruded into a tubular shape and at the same time, the gas is discharged into the tubular body and placed between the molds while maintaining the tubular shape, and then the molds are combined to fill the gas. Method of manufacturing an air cushion shoe sole characterized in that it is expanded and molded in the shape of a mold. According to claim 1, The leak means is a cylindrical tube formed on one side of the air cushion is formed in the passage communicating with the cavity of the inside of the air cushion, by inserting the center rod of the air cushion to the center rod and the Air cushion shoes, characterized in that the pressure of the cavity of the air cushion through the inner surface of the tubing is manufactured to leak above a predetermined value The method of claim 3, wherein the cylindrical tube is provided with an elastic means to compress the cylindrical tube with the inward elastic force thereof in the center rod shaft of the air valve inserted therein to seal the passage, The inward elastic force of the elastic means is a method of manufacturing an air cushion sole, characterized in that is determined by a predetermined value of pressure. The method of claim 1, wherein the mold has at least two separate cavities and at the same time the air cushion formed therein also has two cavities, each of which has an air valve so as to have different predetermined pressure values. Method of manufacturing an air cushion shoe sole characterized in that it is manufactured. The air cushion as set forth in claim 1, wherein the thickness, shape, and number of pairs of mutually symmetrical recesses of the air cushion are sufficient to support the weight of the wearer even when a pressure is released from the cavity by punching the air cushion. Method for manufacturing an air cushion shoe sole characterized in that it is manufactured to be selected. The method of claim 1, wherein the elastic material is selected from the group consisting of polyurethane, polyethylene / ethylene vinyl acetate copolymer, polyester elastomer, chlorinated polyethylene, polyvinyl chloride, chlorocellonated polyethylene, neoprene, and the like. To use, the shock absorbing material is a method of manufacturing an air cushion sole, characterized in that consisting of a gas, a liquid or a combination thereof. The method according to claim 2, wherein the already-formed sole is inserted into the mold to apply an adhesive between the elastic material and the above-mentioned sole is simultaneously bonded to the bottom of the air cushion during molding. Air cushion shoe sole manufacturing method characterized in that. The method according to claim 8, wherein the upper part of the shoe is inserted into the mold, and an adhesive is applied between the elastic material so that the upper part of the shoe is simultaneously bonded to its flat upper surface when the air cushion is formed. Method of manufacturing an air cushion shoe sole characterized in that it is manufactured. An air cushion sole molded into a three-dimensional shape with an elastic material, the air cushion sole having at least one cavity having a quadrangular cross section therein, a plurality of mutually symmetric grooves formed and at least the top surface being flat; Forming a cylindrical tubing in one direction by inserting an air valve thereby the air cushion sole, characterized in that the pressure of the shock absorber filled in the cavity of the air cushion through this is configured to leak automatically above a predetermined value. 11. The method according to claim 10, wherein the cylindrical tube is provided with an elastic means and the inward elastic force of the cylindrical tube is pressed against the central rod shaft of the air valve inserted therein is in communication with the beating of the air cushion An air cushion shoe sole, characterized in that the tub is formed to seal the passage, the elastic force of the elastic means is configured to automatically leak when the pressure charged in the cavity is above a predetermined value. 12. The sole of claim 11, wherein the elastic means comprises a plurality of shock rings, the size and number of which are determined by the elastic force of the elastic means. 12. The method of claim 11, wherein the elastic means is composed of at least one tubular ring made of an elastic material, is inserted concentrically on the outside of the cylindrical tube, the size and number thereof is determined by the elastic force of the elastic means Air cushion shoe sole, characterized in that. 12. The impact of claim 11, wherein a flange is formed at the end of the center rod of the air valve to be fixed to the cylindrical tube, and at the same time, several flanges are formed in the flange to thereby fill the cavity. An air cushion shoe sole, characterized in that configured to automatically leak the shock absorber against the inward elastic force of the elastic means when the pressure of the absorber is above a predetermined value. The weight of the wearer according to claim 10, wherein a thin portion is formed between the pair of recessed grooves which are symmetrically formed from the upper and lower surfaces of the air cushion, and the shock absorber is not filled in the cavity of the air cushion. The pair of grooves to be supported, the support force of the pair of grooves, characterized in that the air cushion sole is configured by the composition of the shape, thickness, size, frequency and the elastic material. 11. The air cushion sole of claim 10 wherein said elastic material is comprised of polyurethane, said shock absorber is air, and said predetermined value of said pressure is in the range of 40-100 psi. 16. The method according to claim 15, wherein a hole is formed in the thin portion formed between the mutually symmetric grooves, and embedded in the foam elastic material so that the elastic materials are filled into the pair of grooves, respectively, so that the vertical support force is increased. Air cushion shoe sole, characterized in that configured. The method of claim 10, wherein the air cushion is composed of at least two cavities provided with an air valve in each cavity, each of the cavities to have the predetermined pressure and shock absorbing power, the highest impact in the sole Air cushioning shoe sole, characterized in that partitioned to correspond to the receiving area and other areas. The sole of claim 11, wherein the sole is bonded to the bottom of the air cushion, and the upper shoe is joined to the flat upper surface. 11. The method of claim 10, wherein the bottom surface of the air cushion is formed thick, the material of the material is selected as abrasion resistance consists of an outsole that the bottom surface of the air cushion in contact with the ground The sole of claim 10, wherein the upper and lower surfaces of the air cushion are formed to be concave, and convex soles are bonded to the lower surfaces of the air cushion. The sole of claim 10, wherein the upper and lower surfaces of the air cushion are formed to be concave, and a flat sole is bonded to the lower surface thereof. 11. The air cushion sole according to claim 10, wherein the air cushion has at least two parallel rectangular cavities, which communicate with each other through at least one hole, and at the same time, are connected in a channel shape to flex freely. .

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