WO2009136700A2 - Shoe sole having hollow cushioning protrusions, a mold for producing the same and a production method therefor - Google Patents

Abstract

The present invention relates to a shoe sole having hollow cushioning protrusions formed on the outsole as one piece, a mold for producing the same and a production method thereof.  In particular, unvulcanized rubber is subjected to heat and pressure for vulcanization to be used in the production of a shoe sole that comprises at least one hollow cushioning protrusion projected outward from the top surface of an outsole, wherein the hollow cushioning protrusion has a hollow interior defining a hermetically sealed air space such that the outsole is not easily depressed and continuously experiences compressive deformation by an external force and the recovery thereof.  Advantages of the present invention would therefore include superior shock absorption and rebound resilience functions and an anti-slide effect.

Description

Shoe sole with hollow cushion protrusion, manufacturing mold and manufacturing method therefor

The present invention relates to a shoe sole in which the hollow cushioning protrusion is integrally formed on the outsole, and to a manufacturing mold and a manufacturing method thereof. More specifically, the hollow cushioning protrusion having a hardness difference in the outsole constituting the bottom surface of the sole is formed on the upper or lower surface of the outsole. The present invention relates to a technology for forming shocks and preventing slipping by integrally forming the mold in one mold.

In general, the upper of the shoe protects the foot, and the midsole, which is the midsole, is a foam-expanded material, which serves to balance shock absorption and foot, and the outsole, which is the outsole, is a non-foaming layer that improves anti-slip, landing and wear resistance It is made of material. Of course, there is a single outsole made of foam layer, but in this case, it is a low-cost shoe that is not slippery and rarely used except for slippers or sandals.

Therefore, the shoe sole according to the prior art has a non-slip and shock absorbing force in which the midsole and the outsole are integrated after going through the bonding process that combines the outsole and the shock-absorbing midsole to the ground through a separate facility and manufacturing process. Soles are being released.

The completed shoe sole has a problem that the manufacturing process and mold manufacturing costs are doubled, so the product cost of the shoe sole is high due to labor cost, energy consumption, and waste of manufacturing time.

Therefore, the present invention provides a shoe sole provided with a hollow cushioning projection that is not easily recessed by forming a closed space on the top, bottom, or both sides of the outsole to provide shock absorbing and restoring effect by external force, and at the same time, a landing force and an anti-slip effect. We want to provide the technology that can be done.

In another aspect, the present invention is to provide a mold and a manufacturing method that can be molded integrally with the outsole while the hollow cushioning projection to accommodate the air therein different hardness or physical properties.

The present invention for achieving the problem as described, the shoe sole is prepared by applying heat and pressure to the vulcanized rubber, including at least one hollow cushioning protrusion protruding on the upper surface of the outsole, the hollow cushioning projection is hollow It proposes a shoe sole provided with a hollow cushioning projection, characterized in that it comprises an outsole that has an interior and the inside of the hollow is sealed in the air, the compression deformation and restoration by the external force continuously.

In addition, the present invention in the shoe sole is prepared by applying heat and pressure to the unvulcanized rubber, including at least one hollow cushion protrusion protruding on the lower surface of the outsole, the hollow cushion protrusion has a hollow inside, the hollow inside It proposes a shoe sole provided with a hollow cushioning projection characterized in that it comprises an outsole in which the air is kept in a sealed state and the compression deformation and restoration by the external force continuously.

Preferably, the outsole is provided with one or more chambers recessed in the upper or lower surface is provided with a shoe sole provided with a hollow cushion projection, characterized in that a plurality of hollow cushion projections are formed inside the chamber.

Preferably, the outsole has a sole having a hollow cushioning projection, characterized in that the front chamber and the rear chamber recessed on the upper surface are separated by a partition wall, and the plurality of hollow cushioning projections are formed on the front chamber and the rear chamber. Suggest.

Preferably, the outsole is coupled to a non-breathable plate covering the front chamber and the rear chamber in contact with the top surface of the hollow cushioning projections, and the plurality of outlet inlets for allowing the front chamber and the rear chamber to communicate with the outside world. We propose a shoe sole provided with a hollow cushioning projection, characterized in that formed on a breathable plate.

Preferably, the foamed expanded midsole is coupled to the upper portion of the outsole, and the midsole is formed by separating the front receiving chamber and the rear receiving chamber which can accommodate the hollow cushion lifters on the lower surface thereof by partition walls, and The upper surface proposes a shoe sole provided with a hollow cushioning projection, characterized in that a plurality of outlet openings are communicated with the front receiving chamber and the rear receiving chamber.

Preferably the hollow cushion protrusions propose a shoe sole provided with a hollow cushion projection, characterized in that the elastic body is further included in some or all of the hollow cushion projection.

In another aspect, the present invention is a shoe sole manufactured by applying heat and pressure to the unvulcanized rubber, and at least one hollow cushion projection protruding to both sides of the upper and lower surfaces of the outsole, the hollow cushion projection has a hollow interior, The inside of the hollow proposes a shoe sole provided with a hollow cushioning projection, characterized in that it includes an outsole that is kept in the air sealed state and the compression deformation and restoration by the external force continuously.

Preferably the hollow cushion protrusion proposes a shoe sole provided with a hollow cushion projection, characterized in that it has a softer physical properties than the outsole.

And the present invention is a shoe sole manufactured by applying heat and pressure to the unvulcanized rubber, at least one hollow cushioning protrusion protruding to both sides of the upper and lower surfaces of the outsole and the upper end of the hollow cushioning projection is opened to open the hollow opening Although, the hollow cushion protrusion is formed in the recessed chamber of the outsole, the hollow cushion protrusion is proposed with a shoe sole provided with a hollow cushion projection, characterized in that it has a softer physical properties than the outsole.

Preferably the hollow cushion protrusion proposes a shoe sole provided with a hollow cushion projection, characterized in that the upper end portion of the hollow cushion projection protrudes higher than the upper surface portion of the chamber formed in the outsole.

Preferably the hollow cushion protrusion proposes a shoe sole provided with a hollow cushion projection, characterized in that one hollow cushion projection is formed for each one of the chambers to be separated independently.

Preferably, the hollow cushion protrusion has a plurality of hollow cushion protrusions continuously formed, and the hollow cushion protrusion of the middle portion protrudes downwardly the longest in the longitudinal direction, and the hollow cushion protrusions formed in the front-rear direction based on this gradually have a protruding length. It proposes a shoe sole provided with a hollow cushion projection characterized in that it is formed to be small.

Preferably, the hollow cushion protrusion is provided with a hollow cushioning projection, characterized in that a plurality of hollow cushioning projections are continuously formed, and the main hollow cushioning projection having a long protruding downward and the intermediate hollow cushioning projection having a small protruding degree are alternately formed. I suggest a shoe sole.

Preferably, the hollow opening portion formed in the main hollow cushion protrusion is deeply formed, and the hollow opening portion formed in the intermediate hollow cushion protrusion is proposed to have a shoe sole provided with a hollow cushion protrusion.

And the present invention is a shoe sole prepared by applying heat and pressure to the unvulcanized rubber, including a plurality of hollow cushion projections protruding on both sides of the upper and lower surfaces of the outsole, the hollow cushion projections have a closed hollow interior or It has a hollow opening with an upper end opening, and further comprising a hollow cushion projection for acupressure protruding downward than other portions at a position corresponding to the arch portion of the sole, the hollow cushion projection and the hollow cushion projection for acupressure are softer than the outsole. We propose a shoe sole provided with a hollow cushioning projection, characterized in that it has a physical property.

And the present invention is a shoe sole manufactured by applying heat and pressure to the unvulcanized rubber, the hollow cushion projections are formed on the upper surface of the outsole, the outsole protrudes downwardly in the shape corresponding to the sole arch portion Acupressure protrusions are formed, the hollow cushion protrusions have a hollow opening portion opened to the upper, the hollow pressure cushion for acupressure formed in the upper portion of the acupressure protrusions is a form of the lower opening is combined with the acupressure protrusions and sealed inside It proposes a shoe sole provided with a hollow cushioning projection, characterized in that to form a hollow inside.

And the present invention is a shoe sole manufactured by applying heat and pressure to the unvulcanized rubber, the chamber is formed one perforated up and down in the outsole, a plurality of hollow opening having a top opening projecting downward in the chamber Hollow cushion projections are integrally coupled, the sole corresponding to the arch portion of the sole is provided with a hollow cushioning projection, characterized in that one hollow cushioning projection is provided with an upper pressure opening that protrudes downward than other parts Suggest.

In another aspect, the present invention is a shoe sole manufactured by applying heat and pressure to the unvulcanized rubber and vulcanized, one chamber is formed in the outsole perforated up and down, the chamber is formed at a position corresponding to the arch of the sole, the chamber A hollow hollow cushioning projection having an upper portion projecting downward through the opening is formed, and the hollow is characterized in that a plurality of hollow cushioning projections having a hollow opening are formed on the upper surface of the outsole while being connected to the acupressure hollow cushioning projection. We propose a shoe sole provided with a cushioning projection.

In another aspect, the present invention is a shoe sole prepared by applying heat and pressure to the unvulcanized rubber, and at least two independent chambers are provided, including a chamber which is perforated up and down to a position corresponding to the sole arch on the outsole. In the chamber corresponding to the tooth, one hollow cushioning projection for opening the upper part is formed to protrude, and the other chamber is formed with a plurality of hollow cushioning projections having the upper part forming an assembly and integrally coupled with the outsole. It proposes a shoe sole provided with a hollow cushion projection.

Preferably the shoe sole is provided with a hollow cushion projection, characterized in that the pressing body is installed in the hollow space of the hollow cushion projection for acupressure.

In the present invention, in the manufacturing mold of a shoe sole manufactured by injecting an unvulcanized rubber into a mold and applying it by applying heat and pressure, a protruding surface protruding downward to the bottom and a plurality of protruding grooves recessed in the protruding surface are provided. An upper mold provided; A first molding space portion having an upper surface protruding surface of the upper mold and a protrusion bar protruding from the inner side of the first molding space portion so as to be inserted into the protrusion molding groove of the upper mold, and pressurized to protrude downward An intermediate mold having a face formed thereon; It proposes a manufacturing mold of a shoe sole provided with a hollow cushioning projection, characterized in that it comprises a; a lower mold formed with a second molding space portion is formed to receive the pressing surface of the intermediate mold on the upper surface.

Preferably, the upper mold proposes a mold for manufacturing a shoe sole having a hollow cushioning projection, characterized in that a partition wall forming groove for partitioning the protruding surface into a front portion and a rear portion is further formed.

In another aspect, the present invention is a manufacturing method of a shoe sole provided with a hollow cushion projection, the upper step and the intermediate mold between the upper unvulcanized rubber, the intermediate step and the lower mold between the lower unprepared rubber; A first mold closing step of coupling the upper mold, the intermediate mold, and the lower mold; A semi-vulcanization step of applying heat to the upper and lower unvulcanized rubbers in the closed molds so as to become a semi-vulcanized state; A second mold closing step of removing the intermediate mold and then combining the upper mold and the lower mold so that the upper semi-vulcanized rubber and the lower semi-vulcanized rubber are in contact with each other; Hollow cushioning projection, characterized in that it comprises a hollow cushioning projection integrally formed on the upper surface of the outsole; We propose a method of manufacturing a shoe sole provided.

In addition, the present invention in the manufacturing mold of the sole manufactured by putting the unvulcanized rubber into the mold and applied by heat and pressure to vulcanize, protruding surface protruding downward to the bottom surface, and a plurality of first protrusion molding formed in the protruding surface An upper mold provided with a groove; A first molding space portion receiving the projecting surface of the upper mold to the upper surface, and a first protrusion rod protruding to the inner side of the first molding space portion to be inserted into the first projection molding groove of the upper mold, the bottom surface An intermediate mold having a pressing surface protruding downwardly and having a second protrusion rod protruding from the pressing surface at the same position as the first protrusion rod; A second molding space portion is formed on the upper surface to receive the pressing surface of the intermediate mold, and the second molding space portion includes a lower mold having a second protrusion molding groove into which the second protrusion rod is inserted. It proposes a manufacturing mold of a shoe sole provided with a hollow cushion projection.

The shoe sole according to the present invention and a mold for manufacturing the same, and a manufacturing method therefor has an effect that it is possible to provide a shoe shoe that can last a long time, while maintaining the functions of the present application such as propulsion and anti-slip due to shock absorption or rebound elasticity. .

In addition, the sole of the present invention can be formed in a variety of shapes, such as hollow cushion projections and varying the height of the hollow cushion projections can be implemented in a variety of forms, it is possible to provide users with a wide range of choices have. In other words, the user can select a shoe having an optimal shoe sole according to his or her physical condition or the presence of other diseases to help health.

1 is an exploded perspective view and cross-sectional view of a shoe sole according to a first preferred embodiment of the present invention.

Figure 2 is a cross-sectional view showing the action of the hollow cushion projections.

3 is a perspective view and a cross-sectional view of the shoe to which the sole of FIG. 1 is applied.

Figure 4 is an exploded perspective view and cross-sectional view of the shoe sole according to the second embodiment.

5 is a perspective view and a cross-sectional view of the shoe is coupled to the sole of FIG.

Figure 6 is an exploded perspective view and cross-sectional view of the shoe sole according to the third embodiment.

7 is a perspective view and a cross-sectional view of a shoe provided with a shoe sole of FIG.

8 is a perspective view of a schematic cross-sectional view and upper of the shoe sole according to the fourth embodiment in a coupled state;

9 is a schematic perspective view and a sectional view of a shoe sole according to a fifth embodiment;

Fig. 10 is a schematic partial sectional view of the sixth embodiment.

Figure 11 is a perspective view and a sectional view of the schematic shoe sole for the seventh embodiment;

12 is a perspective view and a sectional view of still another modification of the seventh embodiment;

13 is a schematic perspective view of a shoe sole showing an eighth embodiment;

14 is a schematic sectional view of a shoe sole according to a ninth embodiment;

Fig. 15 is a sectional view of the schematic shoe sole according to the tenth embodiment.

Fig. 16 is a schematic perspective view and sectional view of the eleventh embodiment.

Figure 17 is a schematic perspective view and a sectional view of the twelfth embodiment.

18 is a schematic view of the thirteenth embodiment.

19 is a schematic sectional view of a shoe sole according to a fourteenth embodiment;

20 is a sectional view of the shoe sole according to the fifteenth embodiment.

21 is a perspective view and a sectional view of the shoe sole according to the sixteenth embodiment;

22 is a perspective view and a sectional view of the shoe sole according to the seventeenth embodiment;

23 is a perspective view and a sectional view of the shoe sole according to the eighteenth embodiment;

Figure 24 is a perspective view and a cross-sectional view before coupling showing the installation state of the upper mold, the middle mold and the lower mold as a representative mold for the production of a shoe sole according to the present invention.

Figure 25 is a perspective view and a sectional view of the mold after joining.

Figure 26 is a perspective view and a cross-sectional view showing a state in which the middle mold is removed and the upper mold and the lower mold are combined.

Fig. 27 is a perspective view and a sectional view of the unvulcanized rubber.

Figure 28 is a cross-sectional view of the upper mold, the middle mold and the lower mold assembled state and a cross-sectional view of the disassembled state.

Figure 29 is a cross-sectional view showing the coupling state of the upper mold and the lower mold is removed the intermediate mold .

                 <Description of Major Symbols Used in Drawings>

100: outsole 110: incision groove

200: hollow cushion projection 210: hollow interior (hollow opening)

300: non-breathable plate 310: outflow inlet

400: midsole 410: front receiving chamber

420: rear receiving chamber 430: outlet

500: sealing member

700: upper mold 710: protruding surface

711: protrusion forming groove 712: protrusion bar

713: first projection forming groove 720: partition wall forming groove

800: intermediate mold 810: first molding space

811: protrusion bar 812: protrusion forming groove

813: first protrusion rod 814: second protrusion rod

820: pressure surface 900: lower mold

910: second molding space 911: second projection molding groove

C1: front chamber C2: rear chamber

W: bulkhead 600: elastic body

R1-1: Upper Unvulcanized Rubber R1-2: Lower Unvulcanized Rubber

R2-1: Upper half vulcanized rubber R2-2: Lower half vulcanized rubber

10: upper C: chamber

200a: acupressure hollow cushion projections 120: acupressure projections

DETAILED DESCRIPTION Hereinafter, the related drawings will be referred to as a means for assisting in understanding the technical spirit of the present invention. However, the drawings presented are merely examples of the present invention. Modifications made by others in the same area as the technical spirit of the present invention should be understood to be included in the technical scope of the present invention.

1 is an exploded perspective view and cross-sectional view of a shoe sole according to a first preferred embodiment of the present invention, FIG. 2 is a cross-sectional view showing an operation state of the hollow cushion protrusion, and FIG. 3 is a perspective view and a cross-sectional view of the shoe to which the sole of FIG. 1 is applied. Yes.

The shoe sole of the present invention is manufactured by applying heat and pressure to the unvulcanized rubber to be vulcanized, and in particular, the hollow cushion protrusions 200 protruding from the upper surface of the outsole are provided, and the hollow cushion protrusion 200 is sealed in the hollow interior 210. It is formed to be built in the air, the compression deformation and restoration by the external force generated during walking continuously provides a shock absorption function and is characterized by not being easily recessed by the air inside the hollow projections even after a long time.

The hollow cushion protrusion 200 may be formed in various shapes such as a cylindrical columnar shape or a Jarabar shape, a long rod shape, an oval shape or a track shape forming a closed curve, and may be composed of a combination thereof. That is, the shape and arrangement of the hollow cushion protrusion 200 may be variously changed in consideration of a user's physical condition or a load distribution generated when walking.

The outsole is made of a rubber material and is molded by vulcanizing the unvulcanized rubber, and at least one hollow cushion protrusion 200 is provided on the whole or part of the upper surface of the plate-shaped outsole 100, and each hollow cushion protrusion is formed by a unique molding method to be described later. The hollow interior 210 forming an empty space is formed in the 200. The hollow interior 210 is accommodated from the step of forming the air, it is blocked from the outside iterative compression and restoration can be made in a closed state to provide a shock absorbing function and resilience and improve the fit do.

In particular, since the hollow cushion protrusion 200 of low hardness formed integrally with the outsole as shown in the present invention can be used as a midsole because of its good elasticity, depending on the type of shoes, the final shoe is not required without a separate midsole. It can also be configured. More specifically, if the hardness of the outsole is 65 to 75 °, the hardness of the hollow cushioning projection may be formed at about 30 to 40 °. The relatively hard outsole allows the body to be balanced without shaking left and right while walking, and the hollow cushion protrusions formed inside the outsole are compressed up and down to disperse and absorb shocks and remove the load. As it recovers, it causes resilience. This feature of the present invention can reduce the number of parts of the shoe and simplify the manufacturing process can help to significantly lower the manufacturing cost can achieve a competitive advantage.

1 to 3 attached to the two chambers (C) recessed on the upper surface of the outsole 100 and a plurality of hollow cushion projections 200 are formed in each chamber. The chamber C formed in the outsole 100 is referred to as a front chamber C1 and a rear chamber C2, and the front chamber C1 and the rear chamber C2 are partitioned by the partition wall W to be independent. You can make a space.

In addition, more preferably, the non-breathable plate 300 is installed to be in contact with the top surface of the hollow cushion protrusions 200 formed in the front chamber C1 and the rear chamber C2. The non-breathable plate 300 covers the front chamber (C1) and the rear chamber (C2), a plurality of outlet inlet 310 to communicate with the inside of the front chamber and the rear chamber (C2) and the upper. Is provided.

On the other hand, since the plurality of hollow cushion projections 200 are formed to protrude at a predetermined separation distance between the adjacent hollow cushion projections 200 is formed as an empty space and the hollow cushion projections 200 are compression deformation due to external force When the air inside the space of the front chamber (C1) and the rear chamber (C2) is made to flow through the plurality of outlet inlet 310 can be made smoothly into the upper.

The non-breathable plate 300 is prepared in advance to be processed and may be formed of a soft synthetic resin material having a hardness higher than the hollow cushion protrusion 200 and having a tensile strength and cold resistance, or cut to a size that meets specifications. Alternatively, for example, the pre-processed EVA is composed of a base compound and may be used in the form of expanded foamed plate, non-foamed polyurethane resin material or nonwoven fabric. And the non-breathable plate 300 may be bonded in a form that is fixedly bonded on the inner surface of the upper end of the outsole.

Attached Figure 3 shows the shoe completed by combining the upper 10 to the shoe sole configured as described above, the non-breathable plate 300 is selected by selecting the option that the upper end of the upper 10 is coupled to the lower surface It may be configured to perform a function. In this case, it is preferable to form a plurality of outlet inlets 310 penetrating vertically in the front and rear, respectively.

Explaining the specific working relationship, when walking and wearing shoes, the hopping motion is performed in the forefoot through the cloud movement after the landing motion to reach the ground from the rear foot. This walking pattern is called normal walking. Therefore, when the rear foot lands on the ground, the hollow cushion protrusions 200 formed in the rear chamber C2 are compressed and deformed, so that the space of the rear chamber C2 becomes smaller and smaller. The air in the space discharges the air into the upper 10 through the rear chamber C2 outlet inlet 310. If the load on the rear foot is removed after landing, the hollow cushioning projection is restored to its original state and new air is introduced as much as the exhausted air.

Even in the hopping motion, the air flow is generated in the front chamber C1 in the same manner as in the rear chamber C2. Therefore, the air inside the shoe is forced to circulate, thereby increasing the wearer's feeling of wearing and the uniformly distributed shock absorbing force. Minimize the distortion will also function to benefit the physical health.

Meanwhile, in the embodiment of FIGS. 1 to 3, one recessed chamber C is provided on both the front side and the rear side of the outsole 100, but the chamber C is located only at either the front side or the rear side. It may be formed or the hollow cushion protrusion 200 may also be configured to be formed only in the chamber (C).

Next, a shoe sole according to a second embodiment of the present invention will be described. FIG. 4 is an exploded perspective view and a cross-sectional view of the shoe sole according to the second embodiment. FIG. 5 is a perspective view and a cross-sectional view of the shoe to which the shoe sole of FIG. 4 is coupled. Yes.

As shown in the drawing, a plurality of hollow cushion projections 200 are formed on the upper surface of the outsole 100, but the outsole 100 itself does not have a separate chamber. Instead, in the present embodiment, the midsole 400 having the front accommodating chamber 410 and the rear accommodating chamber 420 capable of accommodating the hollow cushion protrusion 200 is formed. Of course, the hollow cushion protrusion 200 is the same as having the air-absorbing function by compression and return because air is contained in the sealed hollow interior 210 as described in the first embodiment.

The midsole 400 is expanded and molded, and the front accommodating chamber 410 and the rear accommodating chamber 420 recessed in the lower surface thereof are formed to be divided by the partition wall (W). In addition, a plurality of outlet inlets 430 communicating with the front receiving chamber 410 and the rear receiving chamber 420 may be formed on the upper surface of the midsole 400.

The midsole 400 is foamed and expanded to have a lower hardness than the outsole, and may be a synthetic resin material having a cushion and elasticity. Typically, the midsole 400 may be selected from an E.V.A base compound or a midsole made of polyurethane resin.

When the midsole 400 as described above is coupled to the upper surface of the outsole, the hollow cushion protrusions 200 are surrounded by the front receiving chamber 410 and the rear receiving chamber 420, and a closed space is formed to be isolated from the outside by the hollow. The shock absorbing by the cushion protrusion 200 itself and the midsole 400 is made, and the air in the space may be forced to be circulated through the inlet 430 into the shoe at each walking. The air circulation at the time of walking is the same as in the first embodiment mentioned.

Figure 5 shows a shoe constituted by the second embodiment is the upper sole 10 is coupled to form a midsole 400. As shown in the shoe constituted by the present embodiment is provided with a basic midsole 400, the hollow cushioning projection 200 that can complement the action of the midsole 400 and provide improved shock absorbing ability to the upper surface of the outsole It is formed to support the midsole 400 is configured. The shoe thus constructed helps to achieve the purpose of shock absorption, which is the basic function of the shoe, and protects the foot and improves the fit, and is further complicated and additional to form a forced air circulation into the shoe. The sole structure of the sole without the means is characterized in that the shock absorbing and air circulation is made at the same time every walk. Like this, if forced air circulation is performed at each walking, the temperature rise inside the shoe can be suppressed, which can contribute to reducing foot odor caused by sweating and can reduce foot fatigue.

Next, a third embodiment of the present invention will be described. FIG. 6 is an exploded perspective view and a cross-sectional view of the sole according to the third embodiment, and FIG. 7 is a perspective view and a cross-sectional view of the shoe provided with the sole of FIG. 6.

As shown, the sole according to the third embodiment of the present invention is basically characterized in that the top surface of the outsole 100 is recessed to form a chamber C, and unlike the first embodiment, is composed of one chamber. Inside the chamber (C) a plurality of hollow cushion protrusions 200 are formed to protrude at a distance. In addition, the non-breathable plate 300 installed above the hollow cushion protrusion 200 is formed with a plurality of outlets 310 interspersed so that the air inside the shoe sole may naturally communicate with the inside of the shoe. And if the non-breathable plate 300 to be the same as the taxon attached to the bottom of the upper 10 it is possible to provide a more affordable shoe sole.

Next, a fourth embodiment of the present invention will be described. Figure 8 corresponds to a schematic cross-sectional view of the sole and a perspective view of the upper coupled state.

As shown, in the case of the fourth embodiment, a plurality of hollow cushion protrusions 200 are formed on the bottom surface of the outsole 100, and air is sealed in the hollow interior 210 of the hollow cushion protrusion 200. And restoration can be made. In forming the hollow cushion protrusion 200 on the bottom surface of the outsole 100, preferably having one or two or more chambers recessed from the bottom surface of the outsole 100, the hollow cushion protrusion in the chamber Is preferably formed.

The hollow cushion protrusions 200 formed on the lower surface of the outsole 100 may be made of the same or different materials as the outsole 100 and have a softer property with a lower hardness than the outsole 100. desirable. As such, by placing a soft and elastic hollow cushion projection 200 at the bottom of the outsole 100 in direct contact with the ground when walking, it is possible to provide a shoe with excellent shock absorption function. In addition, since the hollow cushion protrusions 200 are formed to protrude a little more than the lower surface of the outsole 100, the hollow cushioning protrusions 200 increase the adhesion to the ground, thereby causing shock absorption and rebound elasticity to prevent slipping.

That is, when the hollow cushioning protrusions 200 protrude a little more than the outsole 100 as shown in the b of FIG. 8, when the independent protrusions simultaneously touch the ground, the hollow cushioning protrusions having good elasticity are further pressed against the ground. As it is adhered while being dispersed, it has a compressed and soft characteristic, so that the adhesion force is increased rather than the hard outsole material itself, thereby increasing the anti-slip effect.

Next, a fifth embodiment of the present invention will be described. FIG. 9 is a schematic perspective view and a cross-sectional view of the shoe sole according to the present invention.

In the present embodiment, a plurality of hollow cushion protrusions 200 protruding from both the upper and lower surfaces of the outsole 100 are provided, and each of the hollow cushion protrusions 200 is air-sealed in the hollow interior 210. Listened.

In this example, the hollow cushion protrusions 200 are formed inside the chamber C recessed on the upper and lower surfaces of the outsole 100. In particular, the independent front chamber C1 and the rear chamber C2 are formed. Is formed is a suitable number of hollow cushion projections 200 in each chamber (C). In the present embodiment, the hollow cushion protrusion 200 protruding from the upper surface or the lower surface of the outsole 100 can be confirmed. In particular, the hollow cushion protrusions 200 protruding from both sides of the top and bottom of the outsole 100 as in this embodiment may be formed longer than the hollow cushion protrusions protruding only from one surface of the outsole in another embodiment. Therefore, since the hollow inner space is also secured widely, it is possible to provide more excellent shock absorption function.

On the other hand, when the hollow cushion protrusion 200 formed to the bottom of the outsole 100 is compressed while landing on the ground, the upper surface rises higher than the top surface of the outsole 100 so as to contact the sole surface and the hollow cushion protrusion. When the 100 is separated from the ground can provide an acupressure effect to stimulate the sole by the up and down operation in which the hollow cushioning projection is lowered as it is.

Next, a sixth embodiment of the present invention will be described, and FIG. 10 corresponds to a schematic partial sectional view thereof.

In the above-mentioned other embodiments, a hollow cushion protrusion 200 having a confined space in common is provided in the outsole 100, and the inside of the hollow cushion protrusion 200 is formed of an empty space such that air is present. do. It is a summary of the present embodiment that an additional elastic body 600 is further installed in the internal space of the hollow cushion protrusion 200. The elastic body 600 may have a hardness different from that of the hollow cushion protrusion 200 and may be different in material. For example, the elastic body may be made of a material expanded by urethane, E.V.A, or the like, or may be used by inserting a liquid bag having a viscosity.

Next, a seventh embodiment of the present invention will be described, and FIG. 11 shows a perspective view and a cross-sectional view of the shoe sole.

As shown, the upper and lower surfaces of the outsole 100 include at least one hollow cushioning protrusion 200 which protrudes simultaneously on both sides, and the upper end of the hollow cushioning protrusions 200 is opened to form an empty space. Have). And the hollow cushion projections 200 exposed in both the upper and lower sides of the outsole 100 is to be formed in the recessed chamber (C) of the outsole 100, the hollow cushion projections 200 are the outsole 100 Rather, it is molded to have soft characteristics. That is, the outsole 100 and the hollow cushioning protrusions 200 are formed of the same material, but after the final molding with the difference in specific physical properties, the hollow cushioning protrusions 200 are softer so that the shock absorbing function is excellent. It is.

On the other hand, in the case of a shoe sole formed integrally coupled with the outsole 100, the hollow cushioning projection 200 having a hollow opening 210, the upper opening as shown in the present embodiment plate-like sealing member on the upper surface of the outsole 100 It can be configured to block the hollow opening 210 opened by placing the 500. The sealing member 500 may be, for example, a texture or a midsole.

In a more specific manufacturing method, the upper mold and the lower mold are prepared, and the unvulcanized rubber to be the outsole is formed in advance with a perforated perforated portion to be a chamber, and another unvulcanized rubber to form a hollow cushion protrusion is inserted into the perforated portion. If it is molded to be vulcanized, a plurality of hollow cushion projections in the chamber, such as the shape of the mold can be molded while integrally with the outsole.

Particularly, in forming the hollow cushion protrusion 200, a shape in which the upper end portion of the hollow cushion protrusion 200 protrudes higher than the upper surface portion of the chamber C formed in the outsole 100 is more preferably formed. It is appropriate to achieve. That is, when the upper height of the hollow cushion projection 200 is higher than the upper surface portion of the chamber C connecting the outsole 100 and the hollow cushion protrusion 200, the inner space of the hollow opening 210 becomes wider by that much. It will have a better shock absorbing power, and this protruded upper end may provide acupressure effect to stimulate the sole of the foot.

In addition, by attaching the sealing member 500 to the upper portion of the hollow opening 210 to make the interior of the hollow cushion projection 200 become a sealed space, the hollow cushion projection is not easily recessed by external force, so that the shock absorbing and rebound elasticity functions for a long time. There is also a purpose to be maintained.

On the other hand, Figure 12 is a further modified example of the seventh embodiment is formed with a plurality of hollow cushion projections 200 in the form exposed to the upper and lower surfaces of the outsole, the connection portion between the hollow cushion projection 200 and the outsole 100 The upper surface of the chamber (C) and the upper end of the hollow cushioning projections 200 shows that the height can be configured to be the same.

In this case, it is an embodiment showing that the taxon or nonwoven surface attached to the upper bottom may be coupled to the upper surface of the outsole 100 to seal the inner space of the hollow cushion protrusion 200.

FIG. 13 corresponds to a schematic perspective view of a shoe sole showing an eighth embodiment, and as shown in FIG. 13, a chamber C recessed in the outsole 100 as shown in the seventh embodiment has both upper and lower sides of the outsole 100 in the chamber. To form a hollow cushion protrusion 200 to protrude.

In particular, in the case of the eighth embodiment, the chambers C formed in the outsole 100 are composed of a plurality of independent pieces, and one hollow cushioning protrusion 200 is integrally formed in one chamber C. It is done. Therefore, each of the hollow cushion protrusions 200 provided in each chamber C has independence from each other, thereby minimizing the left and right distortion of the foot when walking on an uneven surface, an inclined surface, or an unpaved road, thereby enabling more stable walking, thereby enabling foot fatigue. You can get the effect of relieving.

Next, a ninth embodiment of the present invention will be described, and FIG. 14 shows a schematic cross-sectional view of a shoe sole according to the ninth embodiment.

As shown in the seventh embodiment, a plurality of hollow cushioning protrusions 200 are continuously formed in the chamber C formed in the outsole 100, and in particular, in the ninth embodiment, the hollow cushioning protrusions 200 are formed in the longitudinal direction. Hollow cushion projections formed in the middle portion 200 is the longest protruding form downwards and the hollow cushion projections formed in the front and rear direction based on this is the main feature that the protruding length is gradually reduced. In the case of the shoe sole configured as in the ninth embodiment of the present invention, it exhibits characteristics that can provide a greater movement effect by inducing a cloud movement when walking.

On the other hand, in the present embodiment to vary the degree of protruding downward of the plurality of hollow cushion projections can be placed in the center of the sole of the longest protruding hollow cushion projections while gently supporting the recessed arch of the sole Shock absorption and rebound elasticity is induced, so even after walking for a long time, the effect is not easily fatigued. In other words, the outsole 100 of the sole portion of the sole serves to hold the left and right shaking of the foot, and the low hardness hollow cushioning protrusions support the center of the foot so as to absorb the impact and walk in the right posture.

Next, a tenth embodiment of the present invention will be described, and FIG. 15 shows a schematic cross sectional view of the shoe sole.

As shown, a plurality of hollow cushion protrusions 200 are integrally formed in the outsole 100, and a plurality of hollow cushion protrusions are continuously formed in the chamber C provided in the outsole 100, in particular, downward. Protruding from the long and small is alternately formed. That is, the one that protrudes downwardly among the hollow cushion projections is called the main hollow cushion projection 200a, and the one formed relatively short is called the intermediate hollow cushion projection 200b.

And more preferably, the hollow opening 210 provided in the main hollow cushion projection (200a) is to be formed deep, the hollow opening 210 provided in the intermediate hollow cushion projection (200b) is to be formed low. When walking, the main hollow cushion protrusion 200a is deformed while contacting the ground first, and the shock absorbing action is performed. When the main hollow cushion protrusion 200a is compressed and deformed, the intermediate hollow cushion protrusion 200b also comes into contact with the ground. will be. Since the hollow hollow projection 210 has a lower hollow opening 210 as shown in the figure, the intermediate hollow cushion protrusion 200b is less deformed than the main hollow cushion protrusion 200a, and thus the load transmitted to the already deformed main hollow cushion protrusion 200a is reduced. Dispersion in the intermediate hollow cushion protrusion 200b is suppressed excessive deformation. In addition, the shock absorption is absorbed in a double to obtain the effect that can minimize the impact delivered to the body.

In addition, since the load acts first on the main hollow cushion projections, it also provides a characteristic that an intensive acupressure effect can be generated through the main hollow cushion projection.

Next, an eleventh embodiment of the present invention will be described, and FIG. 16 corresponds to a schematic perspective view and a cross-sectional view thereof.

As shown in the figure, a plurality of hollow cushion protrusions 200 having an upper opening on the top of the outsole 100 are integrally formed, and an incision groove 110 opening to the left and right sides of the outsole 100 is formed to the outside. It is characterized in that the hollow cushion projection is configured to be visible. More preferably, the transparent viewing window is coupled to the incision groove so that water or foreign matter does not flow into the interior from the outside.

Next, a twelfth embodiment of the present invention will be described, and FIG. 17 corresponds to a schematic perspective view and a cross sectional view thereof.

As shown, a plurality of hollow cushion protrusions 20 protrude downwardly toward the lower surface of the outsole 100, and a plurality of cutout grooves 110 are formed along the lower edge of the outsole 100. do. Formation of the hollow cushion projections 200 has a perforated portion in the outsole to form a hollow cushion projection in the perforated portion to form an integral with the outsole. That is, there is also an object to increase the value of the product by making it possible to visually confirm that the hollow cushioning projections are installed on the side of the bottom of the outsole 100.

On the other hand, the hollow cushion projections also form part of the outsole, but in consideration of the convenience of the description will be made to explain the outsole and the hollow cushion projections separately.

Next, a thirteenth embodiment of the present invention will be described, and FIG. 18 corresponds to a schematic diagram thereof. The drawings as the thirteenth embodiment shown in FIG. 18 show modifications to other embodiments already mentioned, and various modifications can be made as such within the scope of the inventive concept.

That is, the specific shape of the hollow cushion projection 200 may be a straight or closed curve form from a cylindrical shape, the formation position may also be formed only in the forefoot portion or may be formed at the forefoot portion and the forefoot portion at the same time.

In addition, the hollow cushion protrusion may be embodied in a jara bar shape or a round shape, and the above-mentioned elastic body may be inserted into an empty space formed in the hollow cushion protrusion.

On the other hand, the sole of the present invention may be configured such that the sealing member or the traction is further installed on the upper surface of the hollow cushion projection according to the type or use of the shoe, a separate midsole may be further formed.

Next, a fourteenth embodiment of the present invention will be described, and FIG. 19 corresponds to a schematic cross-sectional view of the shoe sole according to the present invention.

In this embodiment, a plurality of hollow cushion projections 200 protruding to both sides of the upper and lower surfaces of the outsole 100 are integrally formed, and the hollow cushion projections 200 are opened at an upper portion thereof to open the hollow opening 210. It may be in the form of any one having, or having a sealed hollow interior 210.

In particular, it is assumed that the hollow cushioning projection 200a for protruding downwardly from other portions at a position corresponding to the arch portion of the sole is further provided. Preferably, the hollow cushion protrusion 200 and the acupressure hollow cushion protrusion 200a are suitably configured to have softer physical properties than the outsole 100 itself, and when the hollow cushion protrusion 200 has a sealed hollow interior, The hollow cushion protrusion 200 and the acupressure hollow cushion protrusion 200a protruding may be configured to have the same physical properties or different physical properties as the outsole 100. The hollow cushion protrusion 200 and the acupressure hollow cushion protrusion 200a protruding to the upper surface have softer properties than the outsole 100.

On the other hand, in the case of a hollow cushion projection for acupressure (200a) having a hollow opening 210 open to the upper portion may be configured by inserting a separate elastic body in the hollow opening (210).

As such, the hollow cushion protrusion 200a for acupressure that can press the arch portion of the sole in the shoe sole is provided so that the upper surface of the hollow cushioning protrusion 200a for the acupressure rises whenever the user's foot is landed while walking, thereby intensively stimulating the sole arch. It is possible to provide a beneficial effect on the human body. When the user's foot is separated from the ground, the upper surface of the hollow cushion projection 200a for acupressure is lowered to its original position, and the upper surface of the hollow cushion protrusion 200a protruding more than the surrounding bottom surface is in contact with the sole of the foot, and then the foot is separated. It stimulates blood circulation.

Next, a fifteenth embodiment of the present invention will be described, and FIG. 20 shows a cross-sectional view of the shoe sole according to the present invention.

In the present embodiment, the hollow cushion protrusions 200 are formed on the upper surface of the outsole 100, and the acupressure protrusions 120 protruding in the form recessed downward in the position corresponding to the sole arch are formed on the outsole 100. The hollow cushion protrusions 200 formed on the top surface of the outsole 100 have hollow openings 210 having an open upper portion, and in particular, the hollow cushion protrusions 200a for acupressure formed on the top of the acupressure protrusions 120. ) Is to form a hollow inner portion 210 which is an inner space that is sealed when combined with the acupressure protrusion 120 by having a form opened to the lower portion. The shoe sole according to the present embodiment may also help the user's health by smoothly circulating blood by generating intensive pressure and irritation to the sole arch.

Next, a sixteenth embodiment of the present invention will be described, and FIG. 21 shows a perspective view and a cross-sectional view of the shoe sole according to it.

This embodiment is also a shoe sole that is formed integrally with a plurality of hollow cushion projections 200 on the outsole 100 by applying heat and pressure to the unvulcanized rubber, one chamber (C) formed by drilling up and down on the outsole 100 Is provided with the chamber (C) is formed long in the front and rear direction similar to the overall shape of the sole. Here, the chamber C refers to a space in which the hollow cushion protrusions 200 are integrally formed and formed in the perforated portion inside the outsole 100.

A plurality of hollow cushion projections 200 having a hollow opening 210 that protrudes downward in the chamber (C) formed in the outsole 100 and the upper opening is integrally coupled with the outsole 100, in particular a plurality of hollow Between the cushion projections 200 is provided with one hollow cushioning projection (200a) for acupressure. The acupressure hollow cushion protrusion 200a is larger in size than other hollow cushion protrusions 200 and protrudes downward from other portions and is formed at a position corresponding to the arch portion of the sole. The acupressure hollow cushion protrusion 200a also has an upper portion to have a concave recessed space, and the acupressure hollow cushion protrusion 200a may have a plurality of hollow openings 210 due to its large size, or One wide recessed hollow opening 210 may be formed. When one hollow opening 210 is placed in the hollow cushion projection 200a for acupressure, a separate press body (not shown) may be installed in a recessed space, and the press body may be the same as an elastic body or have a shiatsu effect. It may be a harder synthetic resin to increase, or a magnet or a material that emits far infrared rays, which is beneficial to the human body.

Next, a seventeenth embodiment of the present invention will be described, and FIG. 22 shows a perspective view and a cross-sectional view of the shoe sole according to the present invention.

One perforated chamber (C) is formed in the outsole 100, the position of the chamber (C) is a position corresponding to the arch portion of the sole, acupressure hollow cushion protrusion protruding downward through the chamber (C) A 200a is formed, and the upper portion of the hollow cushion projection 200a for acupressure is opened. In addition, a plurality of hollow cushion protrusions 200 are formed on the top surface of the outsole 100 while being connected to the acupressure hollow cushion protrusion 200a, and the hollow cushion protrusions 200 have hollow openings 210 having an upper opening. will be. In addition, a separate pressurizing body may be installed in the hollow opening 210 recessed in the upper portion of the acupressure hollow cushion protrusion 200a.

Next, an eighteenth embodiment of the present invention will be described, and FIG. 23 shows a perspective view and a cross-sectional view of the shoe sole.

In the present embodiment, a plurality of chambers (C) are formed in the outsole 100, one chamber (C) is formed at a position corresponding to the sole arch, and another one or more independent chamber (C) It may be provided. Preferably, the three chambers (C) are placed so that the hollow cushion projections 200 or the acupressure hollow cushion projections 200a are formed in three regions of the forefoot portion, the rear foot portion, and the arch portion.

In the chamber (C) at a position corresponding to the sole arch portion protrudes a hollow pressure projection (200a) for acupressure and the upper portion of the acupressure hollow cushion projection (200a) is recessed to form a hollow opening 210, In the remaining chambers (C), a plurality of small hollow cushion protrusions 200 are gathered together to form an aggregate and protrude downward. Preferably, the hollow cushioning projection for acupressure 200a is suitable to have a longer length than the other hollow cushioning projections 200, and the hollow opening 210 recessed in the acupressure hollow cushioning protrusion 200a. A press body (not shown) may be installed.

Next, the manufacturing mold of the sole according to the present invention will be described.

In the following description, there is a change in the mold according to each embodiment, but since the basic concepts are common to each other it will be noted that the description can be omitted for these parts.

24 is a perspective view and a cross-sectional view before coupling showing the installation state of the upper mold, the middle mold and the lower mold as a representative mold for the manufacture of a shoe sole according to the present invention, Figure 25 is a perspective view and a cross-sectional view of the mold after coupling, Figure 26 is A perspective view and a cross-sectional view showing a state in which the middle mold is removed and the upper mold and the lower mold are combined.

Manufacturing mold in the present invention consists of the upper mold 700, the middle mold 800, the lower mold 900, between the upper mold 700 and the middle mold 800, and the middle mold 800 and the lower mold ( 900 and the middle mold (800) is removed after forming the semi-vulcanized rubber by applying heat and pressure in the state of putting the unvulcanized rubber between the upper mold (700) and the lower mold (900). Using the heat and pressure once again to form a single unit to be molded by the hollow cushion projection 200 is provided.

More specific structure of the mold will be described.

First, the upper mold 700 has a protruding surface 710 protruding downward to the bottom as shown, and the protruding surface 710 is provided with a plurality of protruding grooves 711 recessed. The protruding surface 710 is sufficient to be the same as the shape of a general shoe.

In the case of the intermediate mold 800, a first molding space 810 is provided on an upper surface of the intermediate mold 800 to accommodate the protrusion 710 of the upper mold 700, and the first mold space 810 is inserted into the protrusion molding groove 711. Inside the molding space 810 is provided with a plurality of protruding rods 811 protruding. And the lower surface of the intermediate mold 800 is provided with a pressing surface 820 protruding downward. A lower mold 900 is provided below the intermediate mold 800, and the second molding space 910 accommodates the pressing surface 820 of the intermediate mold 800 as an upper surface of the lower mold 900. Is prepared.

Pressurized by combining the three molds by injecting the unvulcanized rubber (R1) having a hardness and physical property difference between the upper mold 700 and the middle mold 800, and between the middle mold 800 and the lower mold 900, respectively. When heat is applied, each plate-like unvulcanized rubber (R1) is deformed like the inner shape of the mold and molded into a semi-vulcanized state.

The bottom surface of the lower mold 900 is formed with a sculptural surface forming the bottom of the outsole, the protrusion bar 811 is inserted into the protrusion forming groove 711, the protrusion bar 811 inside the protrusion forming groove 711 ), While the upper vulcanized rubber (R1) fills the space, it forms a plurality of protruding hollow cushion projections (200).

Of the two vulcanized rubbers R1, the upper vulcanized rubber R1-1 is molded between the upper mold 700 and the middle mold 800, and the lower vulcanized rubber R1-2 is the middle mold 800 and After being molded in a semi-vulcanized state between the lower molds 900, the molds are separated to remove the intermediate molds 800, and only the upper molds 700 and the lower molds 900 are coupled to each other to form an upper half of the semi-vulcanized states. The semi-vulcanized rubber (R2-1) and the lower semi-vulcanized rubber (R2-2) are brought into contact with each other, and then heat and pressure are applied to form the final outsole as a complete vulcanized state. At this time, since the plurality of protruding hollow cushion protrusions 200 are formed in the upper semi-vulcanized rubber (R2-1), when contacted with the lower semi-vulcanized rubber (R2-2) to be integrally combined, a plurality of protruding parts on the upper surface of the outsole Hollow cushion protrusions 200 with space may be formed.

On the other hand, in configuring the upper mold 700 may be further provided with a partition wall forming groove 720 is divided into a front portion and a rear portion in the protruding surface 710 formed on the lower surface of the upper mold 700. . The front chamber and the rear chamber which are divided and recessed on the upper surface of the outsole by the partition wall forming groove 720 may be provided.

Next, a method of manufacturing a shoe sole provided with a hollow cushioning protrusion according to the present invention will be described. For the overlapping part, the above-described mold will be used.

The sole manufacturing method in the present invention comprises a preliminary step (I), primary mold closing step (II), semi-vulcanization step (III), secondary mold closing step (IV), complete vulcanization step (V) do.

As shown in FIG. 24, in the preparation step (I), an upper uncured rubber (R1-1) is inserted between the upper mold 700 and the intermediate mold 800, and the intermediate mold 800 and the lower mold ( The lower vulcanized rubber (R1-2) is positioned between 900).

The upper unvulcanized rubber (R1-1) and the lower unvulcanized rubber (R1-2) used in the production method of the present invention may have the same physical properties or have different physical properties and are prepared in a plate shape. Preferably, in the outsole which is completed by different physical properties of the upper vulcanized rubber (R1-1) and the lower vulcanized rubber (R1-2), the lower vulcanized rubber (R1-1) and the upper vulcanized rubber (R1- The part formed by 2) shall have a different hardness. That is, the hollow cushion protrusion 200 formed on the top surface of the outsole is molded as the upper unvulcanized rubber (R1-1) so as to have a softer characteristic as compared to the portion in contact with the ground.

Following the preparation step (I), the first mold closing step (II) is followed by the upper mold with the upper uncured rubber (R1-1) and the lower uncured rubber (R1-2) positioned between the molds. 700, the intermediate mold 800 and the lower mold 900 to be coupled to each other.

After the first mold closing step (II), the semi-vulcanization step (III) is applied to the upper uncured rubber (R1-1) and the lower uncured rubber (R1-2), which are accommodated inside the molds, while applying heat and pressure. In the state, molding is performed like the shape of the mold. Heat applied in the semi-vulcanization stage (III) is about 150 ℃ to 160 ℃ and the pressure condition is to apply a high pressure of about 120Kg. These conditions are also used in the manufacture of conventional outsoles using simply unvulcanized rubber materials. When the primary mold is closed and the vulcanization time of about 15 seconds to 20 seconds is applied while applying proper heat and pressure, the flowable unvulcanized rubber fills the mold internal space like the internal shape of the mold by high pressure.

After the semi-vulcanization step (III), the molds are separated and the secondary mold closing step (IV) is performed to couple and seal the upper mold 700 and the lower mold 800 to each other while the intermediate mold 800 is removed. Follow. When the intermediate mold 800 is removed, the upper semi-vulcanized rubber (R2-1), which is molded in the semi-vulcanized state on the lower surface of the upper mold 700, is brought into close contact with the inner space of the mold, and the lower mold 900 In the lower semi-vulcanized rubber (R2-2) is present in the form of a piece pattern. Therefore, when the upper mold 700 and the lower mold 900 are coupled to each other, the surfaces of the upper semi-vulcanized rubber R2-1 are in contact with each other on the upper surface of the lower semi-vulcanized rubber R2-2.

Next, the complete vulcanization stage (V) is followed. The upper semi-vulcanized rubber (R2-1) and the lower semi-vulcanized rubber (R2-2) formed in a semi-vulcanized state are formed by the upper mold 700 and the lower mold 900. When the heat and pressure are applied again after the sealing between them, the two semi-vulcanized rubbers are integrally joined to each other. The upper surface of the outsole that is integrally formed through the complete vulcanization is formed of a plurality of hollow cushion projections 200 protruding inside the space in which the protruding rod 712 stayed, and the air inside the hollow cushion projection 200 at atmospheric pressure Will have a built-in empty space. Of course, in some cases, each or some of the hollow cushion protrusions 200 may be configured to include a separate elastic body 600. In order to put the additional elastic body 600 inside the hollow cushion projection 200, the hollow in the opened state to be formed into the upper semi-vulcanized rubber (R2-1) state before the second mold closing step (IV) to become a hollow cushion projection By inserting the prepared elastic body into the groove and then fully sealed by the mold, it is possible to manufacture the outsole including the elastic body 600 inside the hollow cushion projection (200).

When the proper heat and pressure are applied in the complete vulcanization step (V), the upper semi-vulcanized rubber (R2-1) and the lower semi-vulcanized rubber (R2-2) are bonded together while the vulcanization is further progressed, without the aid of a separate adhesive. The interior is sealed to form a hollow cushion protrusion 200 in which air is embedded. In particular, the air that is present in the interior space of the hollow cushion protrusion 200 is expanded in the air of the interior space due to the high ambient temperature during vulcanization, even if the molding is made by the expansion air is a separate support If not, molding can be achieved without shrinking or crushing the internal space.

In addition, when the temperature of the molded outsole, which had heat after the outsole is completed, while the air in the hollow interior 210 of the hollow cushion protrusion 200 is expanded, the air inside the hollow drops as the internal air pressure drops. In this case, as compared with the expansion of the internal air, the hollow space area inside the hollow is somewhat reduced, but sufficient space may be secured to be a buffer space.

Another form of shoe manufacturing mold will be described, Figure 27 is a perspective view and a cross-sectional view of the unvulcanized rubber, Figure 28 is a cross-sectional view of the upper mold, intermediate mold and lower mold assembled and cross-sectional view of the disassembled state, 29 is a cross-sectional view showing the coupling state of the upper mold and the lower mold with the intermediate mold removed .

As shown, the manufacturing mold according to the present embodiment is for forming a plurality of hollow cushion protrusions 200 protruding independently from the upper surface as well as the lower surface of the outsole, and in particular, the hollow portions of the upper and lower protrusions are connected to each other. It can be produced to form a wide hollow inside.

More specifically, the bottom surface of the upper mold 700 is provided with a protruding surface 710 protruding downward, the protruding surface 710 is provided with a plurality of first protrusion forming grooves 713 recessed.

In addition, a first molding space 810 for accommodating the protruding surface 710 is provided on an upper surface of the intermediate mold 800 and protrudes to be inserted into the first protrusion forming groove 713 of the upper mold 700. The first protrusion rods 813 are provided in the first molding space 810. The bottom surface of the intermediate mold 800 is provided with a pressing surface 820 protruding downward, wherein the pressing surface 820 is provided with a second protrusion rod 814 protruding at the same position as the first protrusion rod 813.

In the case of the lower mold 900, a second molding space portion 910 is formed on the upper surface thereof to accommodate the pressing surface 820 of the intermediate mold 800, and the second molding space portion 910 is formed in the second molding space portion 910. A second protrusion forming groove 911 into which the protruding rod 814 is inserted is provided.

When manufacturing shoe soles using such molds, the uncured rubber is used, but the upper uncured rubber (R1-1) and the lower uncured rubber (R1-2) are separately prepared, preferably the upper unvulcanized rubber (R1- 1) and the lower vulcanized rubber (R1-2) are made of the same material, but there are differences in specific physical properties so that hardness or elasticity is formed differently after molding. In the case of the lower vulcanized rubber (R1-2), it is prepared as a plate made of one piece, and in the case of the upper vulcanized rubber (R1-1), two separate plate-shaped vulcanized rubbers having the same physical properties should be prepared.

The upper uncured rubber (R1-1) is located between the upper mold 700 and the middle mold 800, and the lower uncured rubber (R1-2) is located between the middle mold 800 and the lower mold 900 Seal the mold. When the mold is sealed in a semi-vulcanized state by applying heat and pressure in a sealed state, the first molding is performed as in the shape of the inside of the mold, and then the mold is separated to remove the upper mold 700 and the lower mold 700 and the lower mold. The mold 900 is coupled again. At this time, the upper semi-vulcanized rubber (R2-1) is attached to the protruding surface of the upper mold 700, the lower semi-vulcanized rubber (R2-2) is attached to the lower mold (900). When the upper mold 700 and the lower mold 900 are combined, the lower semi-vulcanized rubber (R2-2) and the upper semi-vulcanized rubber (R2-1), which are in the semi-vulcanized state, form a contact surface with each other. The upper protrusion and the lower protrusion to be formed are formed while the opposite surfaces facing each other are integrally coupled, and the inner hollow portions communicate with each other.

After further heating and pressure to fully vulcanization proceeds to obtain an outsole formed with an integrated hollow cushion projection without the use of a separate adhesive. Above all, according to the mold of the present embodiment, hollow cushioning protrusions protruding from the upper and lower surfaces of the outsole can be formed at the same time, and the inner empty space of the hollow cushioning protrusion can be more widely secured, thereby exhibiting improved shock absorption and the like. The hollow cushion projection surface exposed to the lower surface also performs the landing force and anti-slip function.

And even after the final shoe is made by combining uppers, hollow cushioning projections are exposed to the outside of the sole of the shoe so that they can be seen visually, thereby stimulating buyers' intention to purchase and directly recognizing the functions and effects with the naked eye. There is this.

In addition, in manufacturing the sole according to various embodiments of the present invention, it is possible to manufacture the sole by a partial modification or combination of the manufacturing mold as described above.

Sole of various footwear, such as general sneakers, hiking boots, safety shoes, combat shoes, shoes, high heels, etc. through the present invention as an inexpensive shock absorbing function that is not easily recessed while being differentiated from conventional products at a low price It is expected that it will be able to provide a wide range of applications because it will be possible to provide shoes with the superiority of prevention and visually identified technologies.

In addition, the hollow cushion protrusion for acupressure protruding to the bottom of the shoe sole has the advantage of providing a beneficial effect to the human body by stimulating the sole of the foot while smoothing blood circulation.

Shoes provided by the present invention can be implemented in a variety of changes according to the purpose or purpose, and can be provided in an optimized form according to the user's physical conditions or the presence of disease, so provide a new concept of shoes having a high value added It is expected that the technology is highly available.

Claims (25)

1. In the sole manufactured by applying heat and pressure to the unvulcanized rubber and vulcanizing,

   At least one hollow cushioning protrusion protruding from the upper surface of the outsole, wherein the hollow cushioning protrusion has a hollow inside and the inside of the hollow air is sealed in the state that the compression deformation and restoration by the external force continuously Shoe sole provided with a hollow cushion projection, characterized in that it comprises.
2. In the sole manufactured by applying heat and pressure to the unvulcanized rubber and vulcanizing,

   At least one hollow cushioning protrusion protruding from the bottom of the outsole, the hollow cushioning projection has a hollow inside, the inside of the hollow air is contained in an airtight state that the compression deformation and restoration by the external force continuously Shoe sole provided with a hollow cushion projections comprising a.
3. The method according to claim 1 or 2,

   The outsole is,

   Shoe sole provided with a hollow cushioning projection, characterized in that a plurality of hollow cushioning projections are formed in the chamber is provided with one or more chambers recessed in the upper or lower surface.
4. The method of claim 1,

   The outsole is,

   Shoe sole with a hollow cushioning projection, characterized in that the front chamber and the rear chamber recessed in the upper surface is formed by a partition wall, the front chamber and the rear chamber is formed with a plurality of hollow cushioning projection.
5. The method of claim 4, wherein

   In the outsole,

   The non-breathable plate which covers the front chamber and the rear chamber to be in contact with the top surface of the hollow cushioning projections is coupled, and a plurality of outlet inlets for allowing the front chamber and the rear chamber to communicate with the outside is formed in the non-breathable plate A shoe sole provided with a hollow cushion projection, characterized in that.
6. The method of claim 1,

   On top of the outsole,

   The expansion-expanded midsole is coupled, the midsole is formed by separating the front receiving chamber and the rear receiving chamber that can accommodate the hollow cushion lifting on the lower surface by the partition wall, the front receiving chamber and the rear of the midsole A shoe sole provided with a hollow cushioning projection, characterized in that a plurality of outlets communicated with the receiving chamber is provided.
7. The method according to claim 1 or 2,

   The hollow cushion projections,

   Shoe sole provided with a hollow cushion projection, characterized in that the elastic body is further included in some or all of the hollow cushion projection.
8. In the sole manufactured by applying heat and pressure to the unvulcanized rubber and vulcanizing,

   At least one hollow cushioning protrusion protruding from both sides of the top and bottom of the outsole, the hollow cushioning projection has a hollow interior, the air inside the hollow is contained in a sealed state to maintain the compression deformation and restoration by external force Shoe sole provided with a hollow cushioning projection, characterized in that it comprises an outsole made of.
9. The method according to any one of claims 1, 2 and 8,

   The hollow cushion projection is,

   Shoe sole provided with a hollow cushioning projection, characterized in that it has a softer physical properties than the outsole.
10. In the sole manufactured by applying heat and pressure to the unvulcanized rubber and vulcanizing,

    At least one hollow cushion protrusion protruding on both sides of the top and bottom of the outsole and the upper end of the hollow cushion projection is opened to have a hollow opening, the hollow cushion projection is formed in the recessed chamber of the outsole, the hollow The cushion protrusion is a shoe sole provided with a hollow cushioning projection, characterized in that it has a softer physical properties than the outsole.
11. The method of claim 10,

    The hollow cushion projection is,

    A shoe sole provided with a hollow cushioning projection, characterized in that the upper end portion of the hollow cushioning projection is formed to protrude higher than the upper surface portion of the chamber formed in the outsole.
12. The method according to claim 10 or 11, wherein

    The hollow cushion projection is,

    Shoe sole provided with a hollow cushion projection, characterized in that one hollow cushioning projection is formed for each chamber to be separated independently.
13. The method according to claim 10 or 11, wherein

    The hollow cushion projection is,

    A plurality of hollow cushion projections are formed continuously, the hollow cushion projection of the middle portion in the longitudinal direction protrudes longest downward, based on this hollow cushion projections formed in the front and rear direction is characterized in that the protrusion length is gradually reduced Sole is provided with a hollow cushion projection.
14. The method according to claim 10 or 11, wherein

    The hollow cushion projection is,

    A shoe sole provided with a hollow cushioning projection, characterized in that a plurality of hollow cushioning projections are formed continuously, and the main hollow cushioning projection having a long protruding downward and the intermediate hollow cushioning projection having a small protruding degree are alternately formed.
15. The method of claim 14,

    Shoe sole provided with a hollow cushioning projection, characterized in that the hollow opening is formed deep in the main hollow cushion projection, the hollow opening formed in the intermediate hollow cushion projection is formed low.
16. In the sole manufactured by applying heat and pressure to the unvulcanized rubber and vulcanizing,

    It includes a plurality of hollow cushion projections protruding on both sides of the upper and lower surfaces of the outsole, the hollow cushion projections have a closed hollow inside or a hollow opening with an upper end opened, the other portion in the position corresponding to the arch of the sole A shoe sole provided with a hollow cushioning projection, characterized in that the hollow cushioning projection for protruding downward is further provided, the hollow cushioning projection and the hollow cushioning projection for acupressure have softer properties than the outsole.
17. In the sole manufactured by applying heat and pressure to the unvulcanized rubber and vulcanizing,

    Hollow cushion protrusions are formed on the upper surface of the outsole, and the outsole is provided with acupressure protrusions protruding downwardly in a portion corresponding to the sole arch, and the hollow cushion protrusions have a hollow opening that is opened upward. The shoe sole provided with a hollow cushioning projection, characterized in that the hollow cushioning projection for the acupressure formed on the upper portion of the acupressure protrusion is formed to be a hollow inner space which is sealed in combination with the acupressure projection as an open shape to the bottom.
18. In the sole manufactured by applying heat and pressure to the unvulcanized rubber and vulcanizing,

    One chamber is formed in the outsole to be perforated up and down, and a plurality of hollow cushioning projections having a hollow opening having an upper portion protruding downwardly into the chamber are integrally coupled to each other. A shoe sole provided with a hollow cushion projection, characterized in that the hollow cushioning projection for acupressure is provided with an upper portion protruding downward.
19. In the sole manufactured by applying heat and pressure to the unvulcanized rubber and vulcanizing,

    One chamber is formed to be perforated up and down in the outsole, the chamber is formed at a position corresponding to the arch portion of the sole, a hollow cushion projection for acupressure opening the upper portion protruding downward through the chamber is formed, The sole is provided with a hollow cushioning projection, characterized in that a plurality of hollow cushioning projections having a hollow opening is formed on the upper surface of the outsole is connected to the hollow cushioning projection for the.
20. In the sole manufactured by applying heat and pressure to the unvulcanized rubber and vulcanizing,

    The outsole is provided with two or more independent chambers including a chamber which is drilled up and down to a position corresponding to the sole arch, and the chamber at the position corresponding to the sole arch has a single acupressure hollow cushion protrusion having an upper opening. The sole is provided with a hollow cushioning projection, characterized in that the protrusion is formed, the plurality of hollow cushioning projections are opened in the top of the remaining chamber is formed integrally with the outsole.
21. The method according to any one of claims 18, 19 and 20,

    In the hollow space of the hollow cushion projection for acupressure,

    Shoe sole provided with a hollow cushioning projection, characterized in that the pressing body is installed.
22. In the manufacturing mold of the sole manufactured by putting the unvulcanized rubber into the mold and vulcanizing it by applying heat and pressure,

    An upper mold provided with a protruding surface protruding downward to a bottom and a plurality of protruding grooves recessed in the protruding surface;

    A first molding space portion having an upper surface protruding surface of the upper mold and a protrusion bar protruding from the inner side of the first molding space portion so as to be inserted into the protrusion molding groove of the upper mold, and pressurized to protrude downward An intermediate mold having a face formed thereon;

    A mold for manufacturing a shoe sole provided with a hollow cushioning projection, comprising: a lower mold having a second molding space formed therein to receive the pressing surface of the intermediate mold on its upper surface.
23. The method of claim 22,

    The upper mold,

    The manufacturing mold of the shoe sole provided with a hollow cushioning projection, characterized in that the partition wall forming groove for partitioning the protruding surface to the front portion and the rear portion is further formed.
24. A method of manufacturing a shoe sole provided with a hollow cushioning projection using a mold according to claim 22 or 23,

    A step of preparing an upper unvulcanized rubber between an upper mold and an intermediate mold, and a lower unvulcanized rubber between the intermediate mold and the lower mold;

    A first mold closing step of coupling the upper mold, the intermediate mold, and the lower mold;

    A semi-vulcanization step of applying heat to the upper and lower unvulcanized rubbers in the closed molds so as to become a semi-vulcanized state;

    A second mold closing step of removing the intermediate mold and then combining the upper mold and the lower mold so that the upper semi-vulcanized rubber and the lower semi-vulcanized rubber are in contact with each other;

    Hollow cushioning projection, characterized in that it comprises a hollow cushioning projection integrally formed on the upper surface of the outsole; Method of manufacturing a shoe sole provided.
25. In the manufacturing mold of the sole manufactured by putting the unvulcanized rubber into the mold and vulcanizing it by applying heat and pressure,

    An upper mold provided with a protruding surface protruding downward to a bottom and a plurality of first protruding grooves recessed in the protruding surface;

    A first molding space portion receiving the projecting surface of the upper mold to the upper surface, and a first protrusion rod protruding to the inner side of the first molding space portion to be inserted into the first projection molding groove of the upper mold, the bottom surface An intermediate mold having a pressing surface protruding downwardly and having a second protrusion rod protruding from the pressing surface at the same position as the first protrusion rod;

    A second molding space portion is formed on the upper surface to receive the pressing surface of the intermediate mold, and the second molding space portion includes a lower mold having a second protrusion molding groove into which the second protrusion rod is inserted. The manufacturing mold of the shoe sole is provided with a hollow cushion projection.

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