KR20090004464A

KR20090004464A - The sole of shoes of which formed at one body mold outsole and air cushion protrusion and the making mold of the shoes and the manufacturing method of the shoes

Info

Publication number: KR20090004464A
Application number: KR1020080043658A
Authority: KR
Inventors: 임성조
Original assignee: 임성조
Priority date: 2008-05-09
Filing date: 2008-05-09
Publication date: 2009-01-12
Also published as: KR20090117593A; KR20090004783A

Abstract

The present invention relates to a sole sole molded integrally with the outsole in a mold, a mold for manufacturing the sole, and a method for manufacturing the sole. The sole of the hollow cushioning protrusion according to the present invention integrally formed with the outsole in a mold is at least one protruding from the upper surface of the flooring material in the sole is manufactured by putting the unvulcanized rubber into the mold and vulcanized by applying heat and pressure. Including hollow cushion projections, the hollow cushion projections have a hollow inside, the hollow inside is made to include an outsole that is kept in the air sealed state by the compression and restoration by the external force by the air pressure continuously. As a result, a hollow cushioning protrusion having a closed space is formed on the upper surface of the outsole to effectively distribute and absorb the load and impact applied to the sole, thereby compressing the air layer inside the hollow cushioning protrusion, which is a non-foaming layer having good shock absorption and restoration. As air pressure is generated, it is possible to continuously maintain a good air cushion action such as a rubber ball to provide excellent cushioning action and comfortable ignition when walking.

Description

SOLE OF SHOES OF WHICH FORMED AT ONE BODY MOLD OUTSOLE AND AIR CUSHION PROTRUSION AND THE MAKING MOLD OF THE SHOES AND THE MANUFACTURING METHOD OF THE SHOES}

The present invention relates to a shoe sole integrally molded with an outsole in a mold, a manufacturing mold for the sole, and a method for manufacturing the sole, and more specifically, a hollow cushion protrusion on the outsole forming the sole of the sole. The present invention relates to a shoe sole formed integrally with an outsole in a mold, a manufacturing mold of the sole, and a manufacturing method of the sole, in which a hollow cushioning protrusion is integrally molded with an outsole in a mold so that the shock absorbing and restoring is continuously performed.

In general, the upper of the shoe protects the foot, and the midsole, which is the midsole, is a foam-expanded material that serves to balance shock absorption and the foot, and the outsole, which is the outsole, is a non-foaming layer that improves anti-slip, landing and abrasion resistance. It is made of phosphorus rubber material.

Of course, there's also a single layered outsole with foam, but in this case, it's a low-cost shoe that doesn't slip well, so it's rarely used except for slippers or sandals.

Therefore, the shoe sole according to the prior art is made by combining the sole and the midsole to the shock absorbing function landing on the ground by making a separate asol and midsole combined with each other through a separate facility and manufacturing process, the soles with anti-slip and shock-absorbing power is released It is.

Therefore, the completed shoe sole is a problem that the manufacturing process and mold manufacturing cost is spent twice, it is a fact that the waste of manufacturing time and the product value of the shoe sole is high.

Therefore, one problem to be solved by the present invention is to provide a shoe sole formed with a hollow cushion protrusion formed with a closed space on the top surface of the outsole, so that the hollow cushioning projection to continuously absorb the impact and restoring by an external force in the outsole in a mold It is to provide a sole and molded mold of the sole and the manufacturing method of the sole.

Another problem to be solved by the present invention is to use a middle mold in one mold to integrally mold a large number of hollow cushioning projections having a difference in hardness and physical properties on the upper surface of the outsole, and to produce a shoe sole using only one working process at a low price. The hollow cushioning projection of the present invention is to provide a shoe sole integrally formed with an outsole, a mold for manufacturing the sole, and a method of manufacturing the shoe sole.

Another problem to be solved by the present invention is to provide a shoe sole integrally formed with an outsole in a mold and a manufacturing mold of the shoe sole and a method of manufacturing the shoe sole in which a hollow cushioning protrusion capable of circulating air in the shoe is formed in one mold. have.

Problems to be solved by the present invention are not limited to the above-mentioned technical problems, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description.

The sole of the hollow cushioning protrusion according to one embodiment of the present invention for forming the technical problem is formed in one mold and the outsole in the mold, the sole is manufactured by adding the unvulcanized rubber into the mold and vulcanized by applying heat and pressure. In one or more hollow cushioning protrusions protruding from the upper surface of the flooring material, the hollow cushioning projections have a hollow inside, the inside of the hollow air is contained in a sealed state, the compression deformation and restoration by the external force by air pressure This includes a continuously made outsole.

The outsole is formed with an edge wall protruding upward from the outer circumference of the flooring material, and a partition wall partitioning an inner space surrounded by the edge wall into a front space portion and a rear space portion is formed, and the front space portion and the rear space portion are formed on the partition wall. Air passages for connecting may be formed.

The hollow cushion protrusion may be provided with a plurality of vertically extending from one side or both sides of the front space portion and the rear space portion.

Meanwhile, the shoe sole integrally formed with the outsole in the mold according to another embodiment of the present invention is located on the upper portion of the hollow cushion protrusion to seal the inner space of the outsole, and the front space of the outsole. It may further include a non-breathable plate formed with an inner inlet through which the air flows through the upper surface and an outer outlet through which the air flows through the upper surface of the rear space.

On the other hand, the sole of the hollow cushion protrusion according to another embodiment of the present invention molded in one mold with the outsole is located on the upper portion of the hollow cushion projection to seal the inner space of the outsole, the outer side of the bottom Border wall protruding downward, the partition wall partitioning the inner space surrounded by the border wall in the front space portion and the rear space portion, the air passage formed in the partition wall connecting the front space portion and the rear space portion, the front of the outsole It may further include a foamed expanded midsole is formed with an internal inlet port through which the air flows through the upper surface of the space, and an external outlet through which the air flows through the upper surface of the rear space of the outsole.

On the other hand, the shoe sole integrally formed with the outsole in the mold in accordance with another embodiment of the present invention, the sole is installed in the air flow path to the intermediate check valve, which opens only in the forward direction, the outer outlet inlet It may further include a rear check valve installed and opened only in the downward direction, and a front check valve installed at the inner outlet and opened only upward.

The hollow cushion protrusion may further include an elastic body inside the hollow.

On the other hand, the manufacturing process of the sole solely molded with the outsole in the mold in the hollow cushioning protrusion according to an embodiment of the present invention, the production of a shoe sole is prepared by injecting the unvulcanized rubber into the mold and vulcanized by applying heat and pressure In the mold, there is provided a protruding surface projecting downward to the bottom surface, the partition groove forming the front space portion and the rear space portion partitioning the projection surface and a plurality of projection forming grooves recessed on one side or both sides of the front space portion or the rear space portion. An upper mold, an intermediate mold provided with a molding space portion for receiving a protruding bottom of the upper mold with an upper surface, a protruding protrusion rod inserted into a protrusion forming groove into the molding space portion, and a pressing surface protruding downwardly into the bottom surface; And a shaping surface forming a bottom pattern of the shaping space portion and the shaping space portion to accommodate the protruding pressing surface of the intermediate mold as an upper surface. It includes a lower die.

On the other hand, the manufacturing method of the sole sole molded integrally with the outsole in the mold of the hollow cushioning projection according to an embodiment of the present invention, the manufacturing mold of the sole sole molded with the outsole in the mold In the manufacturing method of the shoe sole is prepared by injecting the unvulcanized rubber into the mold using the heat and pressure to vulcanize, the unvulcanized rubber is filled in the molding space of the upper mold, the intermediate mold, the intermediate mold and the lower mold, respectively. Filling step, the first mold closing step of completely interviewing the upper mold and the middle mold, the intermediate mold and the lower mold to each other, simultaneously the unvulcanized rubber in the molding space of the upper mold and the intermediate mold, the intermediate mold and the lower mold Semi-vulcanization vulcanization step to make the semi-vulcanization, after the intermediate mold is removed and the upper and lower molds interview each other completely The key includes a secondary mold closing step, and a final vulcanization step of completely vulcanizing the bottom of the semi-vulcanized rubber bottom of the upper mold and the top of the semi-vulcanized rubber upper surface of the lower mold to complete the outsole.

On the other hand, the hollow cushioning projection according to another embodiment of the present invention manufacturing method of the sole solely molded with the outsole in a mold, forming an air flow path connecting the front space portion and the rear space portion to the partition wall of the outsole. The air flow path forming step, and the intermediate check valve installation step of installing the intermediate check valve is opened in one direction only in the air flow path may further include.

On the other hand, the manufacturing method of the shoe sole integrally molded with the outsole in a mold hollow hollow projection according to another embodiment of the present invention, the inner outlet and rear space through which the air flows through the upper surface of the front space of the outsole The method may further include a non-breathable plate bonding step of adhering the non-breathable plate formed through the outer surface of the outlet through which the air flows through the upper portion of the outsole.

On the other hand, the manufacturing method of the shoe sole integrally molded with the outsole in a mold in accordance with another embodiment of the present invention, the front check valve is opened in one direction only to the inner inlet and the outer outlet It may further include a front and rear check valve installation step of installing a rear check valve to be opened in only one direction.

On the other hand, the manufacturing process of the sole solely molded with the outsole in one mold hollow cushioning projection according to another embodiment of the present invention, the production of a shoe sole is prepared by injecting the unvulcanized rubber into the mold and vulcanized by applying heat and pressure In the mold, a top surface protruding downward to the bottom surface, an upper mold having a plurality of protrusion forming grooves recessed in the protruding surface, a molding space portion for receiving the protruding bottom surface of the upper mold on the upper surface and the molding space portion An intermediate mold having a protruding protrusion rod inserted into the protrusion forming groove inwardly and a pressing surface protruding downwardly into the bottom surface, and a molding space portion accommodating the protruding pressing surface of the intermediate mold on the upper surface and a bottom pattern of the molding space portion It includes a lower mold provided with a engraving surface.

On the other hand, according to another embodiment of the present invention, a method for manufacturing a sole sole molded integrally with the outsole in a mold, the hollow cushioning projection manufacturing method of the sole molded integrally with the outsole in a mold In the manufacturing method of the shoe sole is prepared by injecting the unvulcanized rubber into the mold using the heat and pressure to vulcanize, the unvulcanized rubber is filled in the molding space of the upper mold, the middle mold, the middle mold and the lower mold, respectively. Filling step, the first mold closing step of completely interviewing the upper mold and the middle mold, the intermediate mold and the lower mold to each other, the unvulcanized rubber in the molding space of the upper mold and the intermediate mold, the intermediate mold and the lower mold Semi-vulcanization vulcanization step to achieve semi-vulcanization at the same time, after removing the middle mold, the upper mold and the lower mold completely to each other By contact with a secondary mold closing step, and the half of the underside of the upper mold flow rubber bottom and the half-value of the upper surface of the lower mold flow while having tightly adhered to the upper surface of rubber completely to cure and a final cure step to complete the outsole.

On the other hand, the hollow cushioning projection according to another embodiment of the present invention manufacturing method of the sole molded integrally with the outsole in a mold, is located on the upper portion of the hollow cushioning projection to seal the inner space of the outsole, An outer wall protruding downward from the outer circumference of the outer wall, a partition wall defining an inner space surrounded by the outer wall and a rear space portion, an air flow path formed in the partition wall to connect the front space portion and the rear space portion, the outsole A midsole adhesive for adhering a foam-expanded midsole to an upper portion of the outsole having an inner outlet opening through which air is flowed through an upper surface of the front space portion and an outer outlet opening through which air is flowed through an upper surface of the rear space portion of the outsole. It may further comprise a step.

As described above, according to the present invention, the hollow cushioning protrusion according to the present invention is integrally formed with an outsole in a mold, the manufacturing mold of the shoe sole, and the manufacturing method of the shoe sole. By effectively dispersing and absorbing the load and impact applied to the sole, the air layer inside the hollow cushioning projection made of a non-foaming layer with good shock absorption and resilience is compressed to generate air pressure and always maintain good air cushioning action such as rubber balls. By maintaining it can improve the excellent buffering effect and ignition when walking.

In addition, according to the present invention, the hollow cushion protrusion according to the present invention is integrally formed with the outsole in a mold, the manufacturing mold of the shoe sole, and the manufacturing method of the shoe sole, and the hollow cushion protrusion having a continuous air cushion action is formed in the inner space of the outsole. When the inner space is partitioned forward and backward and the hollow cushioning projections are compressed and restored by the external force, the air flows from the heel of the foot by the check valves and flows to the front of the sole by a plurality of check valves. By letting it go out, the inside temperature of the shoe can be lowered and moisture can be removed to improve the comfort inside the shoe.

In addition, according to the sole of the hollow cushioning projection according to the present invention in one mold and the sole and molded mold of the sole and the manufacturing method of the shoe sole, by manufacturing a sole in one working process soles at a low price functional footwear There is an effect that can be provided.

Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various different forms, only the embodiments are to make the disclosure of the present invention complete, and the general knowledge in the art to which the present invention belongs It is provided to fully convey the scope of the invention to those skilled in the art, and the present invention is defined only by the scope of the claims.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention.

First, referring to FIGS. 1 to 3, a hollow cushioning protrusion according to one embodiment of the present invention will be described as a sole molded integrally with an outsole in a mold.

1 is an exploded perspective view and cross-sectional view of a shoe sole integrally formed with an outsole in a mold according to an embodiment of the present invention, Figure 2 is a view showing the operating state of the hollow cushion protrusion according to the present invention 3 is a perspective view and a cross-sectional view of the shoe provided with the sole of FIG.

As shown in Figures 1 to 3, the hollow cushioning protrusion according to the present invention is manufactured by injecting the unvulcanized rubber into the mold and vulcanized by applying heat and pressure to the sole sole molded in one mold in the mold. This rubber sole is a material that is commonly used to manufacture the outsole in the prior art. Characterized by the present invention is characterized in that the hollow cushion projection 160 on the outsole 100 forming the bottom surface of the shoe sole made of such a rubber material through a one-time work process in one mold.

First, the outsole 100 will be described.

As shown, the outsole 100 is formed with at least one hollow cushion projection protruding to the top surface of the flooring material, the hollow cushion projection 160, as shown in Figure 2, the bin The air contained in the hollow interior 162 having a space is provided in a sealed state so that the compression deformation and the original recovery due to the external force are made possible by the air pressure generated while the inner space area is narrowed. Since the hollow cushion protrusion 160 is also made of a rubber material having elasticity according to the contraction and restoration to some extent, such as the outsole 100, the shock transmitted through the sole of the user is the hollow inside of the hollow cushion protrusion 160 ( The air enclosed in 162 is compressed and restored to help alleviate the impact, which is to enable the role of the midsole 300. And since the empty space is formed between the plurality of hollow cushion projections (160) it is possible to reduce the weight of the sole sole as a whole.

In addition, the outsole 100 may further include a border wall 120 protruding upward around the outer circumference of the flooring material supporting the lower end of the upper. An inner space surrounded by the edge wall 120 is formed to be concave by a predetermined height of the edge wall 120, and an inner space of which the upper side is opened. At this time, the inner space is formed in a state in which the edge surface to be bonded to the adhesive surface portion 202 of the non-breathable plate 200 to be described later is left.

In addition, the inner space of the outsole 100 is formed so that the partition wall 150 is partitioned into the front space portion 130 and the rear space portion 140 to protrude in the transverse direction. At least one hollow cushion protrusion 160 is formed at one side or both sides of the front space part 130 and the rear space part 140.

And between the plurality of hollow cushion projections 160 formed in the outsole 100 is formed between the hollow cushion projections 160 in the front space portion 130 and the rear space portion 140 according to the upward formed at a predetermined interval. An air passage through which air flows is formed. The height of the hollow cushion projection 160 is formed at a discretionary height or slightly higher than the height of the edge wall 120 to be folded by the non-breathable plate 200 or the midsole 300 to be described later to receive an external force downward. desirable.

In addition, the partition 150 of the outsole 100 has an air passage 152 connecting the front space 130 and the rear space 140 is formed, the air space 152 has a rear space portion ( An intermediate check valve 154 for moving the air at the side of 140 to the front space 130 side is provided.

Next, the non-breathable plate 200 will be described.

The non-breathable plate 200 is prepared in advance, and may be formed of a soft synthetic resin material having a higher hardness than the hollow cushion protrusion 160 and having tensile strength and cold resistance. For example, it may be formed of a foamed expanded material or a foamed polyurethane resin material composed of a pre-processed EVA base compound.

In addition, the non-breathable plate 200 is provided with a non-breathable material through which no air flows, and is provided in a flat shape to seal the inner space of the outsole 100, and is adhered to the outsole 100.

In addition, the non-breathable plate 200 is the air flows through the upper surface of the inlet outlet 210 and the rear space portion 140 through which the air flows through the upper surface of the front space portion 130 of the outsole 100. The external outlet opening 220 is formed through. Here, the inner oil inlet and outlet 210 may be provided with a front check valve 212 for letting out the air of the front space 130 into the shoe, the outer outlet inlet 220 partitions the air inside the shoe wall 150 The rear check valve 222 may be installed to flow into the rear rear space 140.

Outsole 100 and the non-breathable plate 200 provided as described above, the hollow cushioning projection 160 according to an embodiment of the present invention is formed solely with the outsole 100 in one mold as follows: Works together.

As shown, the upper 1 is coupled to the upper side of the sole consisting of the outsole 100 and the non-breathable plate 200 as described above.

Here, the outsole 100 having the hollow cushion protrusions 160 formed on the upper surface is divided with the partition wall 150 partitioning the inner space into the front space portion 130 and the rear space portion 140, and the hollow cushion protrusions. The non-breathable plate 200 is covered with an upper surface of the 160 so that the inside of the outsole 100 is coupled to a closed space.

At this time, when the sole is subjected to an external force, the non-breathable plate 200 descends to compress the hollow cushion projections 160 to absorb shocks, and the unit area is narrow as the unit area of the inner sealed space of the outsole 100 is compressed. You lose. At this time, the air staying in the space around the hollow cushion projections 160 is forced out through the intermediate check valve 154 and the front check valve 212 in one direction to the shoe inner space or the outside of the space, the moment the external force is released As the compressed hollow cushioning projections 160 are all restored to their original state, the unit area of the inner space is also restored, and the narrowed space area is increased, and the outside air is sucked in as much as the inner space is increased through the rear check valve 222. Done.

In more detail, the air inside the shoe is injected into the rear space 140 through the rear check valve 222 installed at the outer outlet opening 220 of the non-breathable plate 200 on the upper surface of the outsole 100. The intermediate check valve 154 installed in the air flow passage 152 of the partition wall 150 moves the air of the rear space 140 to the inside of the shoe via the front space 130, and the front space 130. The front check valve 212 installed on the inner outlet 210 of the non-breathable plate 200 on the upper surface serves to move the air only inside the shoe.

That is, when the rear space 140 receives an external force, the air of the rear space 140 is discharged inside the intermediate check valve 154 and the non-breathable plate 200 installed in the air passage 152 of the partition wall 150. The inside of the shoe is moved to the inside of the shoe through the front check valve 212 installed in the inlet 210, and when the external force is released, the inside of the shoe through the rear check valve 222 installed at the outer outlet opening 220 of the non-breathable plate 200. Air is injected into the rear space portion 140.

In addition, when the front space portion 130 receives an external force, the air of the front space portion 130 is forcibly discharged into the shoe through the front check valve 212 installed in the inlet 210 of the non-breathable plate 200, When the external force is released, the air or the external air of the rear space 140 is injected into the front space 130 through the intermediate check valve 154 installed in the air flow path 152 of the partition wall 150.

As such, when the front of the foot and the rear axle of the shoe are sequentially landed on the ground, the hollow cushion protrusions 160 inside the sole of the shoe absorb shock and cause the movement of air to block the shock transmitted to the body and also ventilate the air inside the shoe. Even if you walk or run for a long time, you can reduce the fatigue of the sole, while maintaining the interior of the shoe in a comfortable environment to provide a shoe sole that helps to relieve stress. The effect of shock absorption and rebound elasticity and air movement at the same time is due to the air pressure staying in the hollow interior 162 of the hollow cushion protrusion 160.

Hereinafter, the hollow cushioning projection according to another embodiment of the present invention is a shoe sole integrally molded with the outsole in a mold and the hollow cushioning projection according to an embodiment of the present invention of FIGS. It will be described in detail with the focus on the difference with the sole molded in one piece.

4 is an exploded perspective view and cross-sectional view of a shoe sole integrally formed with an outsole in a mold according to another embodiment of the present invention, and FIG. 5 is a perspective view and a cross-sectional view of the shoe in which the sole of FIG. 4 is installed.

As shown in Figure 4 and 5, the sole of the hollow cushioning projection according to the present embodiment molded integrally with the outsole in a mold, the outer sole of the flooring material 110, the outsole 100 supports the lower end of the upper The edge wall 120 protruding upwards is formed in a shape, and instead, a midsole 300 is further provided to surround the top edge of the outsole 100 on the bottom of the midsole 300. Characterized in that formed.

The midsole 300 may be formed of a soft synthetic resin material having a lower hardness than the outsole 100 and having a very soft and good cushion. For example, it is formed by pre-processing with a foamed expanded material or a foamed expanded polyurethane resin material consisting of EVA base compound.

In addition, the midsole 300 is formed of a non-breathable material to seal the inner space of the outsole 100, a border wall 310 protruding downward toward the outer periphery of the bottom to further seal the outsole 100 is further formed. . The midsole 300 having the edge wall 310 formed therein is concave to a predetermined height of the edge wall 310 and has an inner space with an open lower side to accommodate the hollow cushioning projections 160 of the outsole 100. It is provided. At this time, the edge of the midsole 300 is formed in a state in which the edge surface of the outsole 100 is bonded to leave the adhesive surface.

In addition, the midsole 300 may be formed such that the partition wall 340 which partitions the inner space into the front space part 320 and the rear space part 330 protrudes in the horizontal direction. The partition 340 has an air flow path 342 connecting the front space part 320 and the rear space part 330, and the air flow path 342 has a front space part 320 or a rear space part. Intermediate check valve 344 for moving the air of the 330 to only one side may be provided.

In addition, the midsole 300 further includes an internal inlet and outlet 350 through which air is flowed through the front of the outsole 100 and an external outlet and outlet 360 through which air is flowed through the rear of the outsole 100. The inner outlet 350 and the outer outlet 360 may be provided with a front check valve 352 and a rear check valve 354 for moving air to only one side, respectively.

The sole of the hollow cushion protrusion 160 according to the embodiment of the present invention having the outsole 100 and the midsole 300 configured as described above integrally formed with the outsole 100 in one mold functions as follows. .

As shown, the upper (1) is coupled to the upper side of the sole consisting of the outsole 100 and the midsole 300 as described above.

The outsole 100 having the hollow cushion protrusions 160 formed on the upper surface thereof is covered by the midsole 300 to form a closed space inside the outsole 100.

At this time, when the shoe sole receives an external force, the upper surface of the midsole 300 descends while compressing the hollow cushion protrusions 160 supporting the midsole 300 to absorb shocks.

At the same time, the unit area is narrowed as the unit area of the inner space of the outsole 100 is compressed. At this time, the air staying in the space around the hollow cushion protrusions 160 is forcibly discharged to the outside of the inner space or the inner space of the outsole 100 through the intermediate check valve 344 and the front check valve 352, and the external force is released. As soon as the compressed hollow cushioning projections 160 are restored to their original condition, the unit area of the inner space is also restored, and the space area that is narrowed is increased, and the outside air is supplied to the inner space of the outsole 100 through the rear check valve 362. The larger the amount of air is sucked in.

In more detail, the air inside the shoe is injected into the rear space portion 330 of the midsole 300 through the rear check valve 362 of the midsole 300 on the rear upper side of the outsole 100, and the rear space. The air of the part 330 is sent to the front space part 320 through the intermediate check valve 344 installed in the air flow passage 342 of the partition 340, the air of the front space part 320 is the outsole ( 100 is to be circulated into the shoe through the front check valve 352 of the midsole 300 in the upper front side. That is, when the rear space 330 of the midsole 300 receives an external force, the air of the rear space 330 passes through the front space 320 through the intermediate check valve 344 of the partition 340. When the inside is moved, and the external force is released, the air inside the shoe is injected into the rear space 330 through the rear check valve 362. In addition, when the front space portion 320 of the midsole 300 receives an external force, air from the front space portion 320 is forcibly discharged into the shoe through the front check valve 352, and the rear space portion 330 when the external force is released. Air is injected into the front space 320 through the intermediate check valve (344).

When the front space portion 320 and the rear space portion 330 of the midsole 300 is sequentially landed on the ground, the hollow cushion protrusion 160 of the outsole 100 causes the movement of air while absorbing the impact. By blocking the shock transmitted to the body and ventilating the air inside the shoe, it is possible to reduce the fatigue of the foot even when walking or running for a long time while maintaining the inside of the shoe in a comfortable environment to provide a shoe sole that helps to relieve stress. . Such an effect of absorbing shock and rebound elasticity and causing air movement is due to the role of air staying inside the hollow cushion protrusion 160. In this case, in order to make the weight of the shoes lighter, it is possible to manufacture the sole by selectively selecting the foamed and expanded midsole 300 material.

Hereinafter, one embodiment of the present invention of Figures 1 to 3 of the shoe sole integrally molded with the outsole in a mold in accordance with another embodiment of the present invention, of the present invention of Figures 4 and 5 Hollow cushion projection according to another embodiment will be described in detail with a focus on the difference between the sole and the sole sole molded in one mold.

6 is an exploded perspective view and cross-sectional view of a shoe sole integrally formed with an outsole in a mold according to another embodiment of the present invention, Figure 7 is a perspective view and a cross-sectional view of a shoe provided with a shoe sole of FIG. to be.

As shown in Figure 6 and 7, in the present embodiment shows a shoe sole that can ventilate the inside of the shoe even without a check valve.

That is, the outsole 100 is provided with a hollow cushioning protrusion 160 as described above, but does not have a partition wall and a check valve, and a plurality of non-breathable plate members 200 are provided on the top surface of the outsole 100. Through holes 230 are formed to allow the internal air of the outsole 100 to flow naturally through the plurality of through holes 230. The sole of such a structure is intended to shorten the manufacturing process and to increase productivity, and to satisfy the demand of the consumer who wants a more inexpensive sole.

Hereinafter, with reference to the accompanying drawings, a manufacturing mold of a shoe sole formed integrally with a hollow cushioning projection according to the present invention.

8 is a perspective view and a cross-sectional view before the combination showing the installation state of the upper mold, the middle mold and the lower mold to manufacture the outsole according to an embodiment of the present invention, Figure 9 is a perspective view and a cross-sectional view after the combination of Figure 8, 10 is a perspective view and a cross-sectional view showing an installation state in which the middle mold of Figure 9 is removed and the upper mold and the lower mold are combined.

As shown in Figure 8 to 10, the manufacturing mold according to the present invention is composed of an upper mold 400, an intermediate mold 500 and the lower mold 600. Since the manufacturing method of the shoe sole is manufactured using such a manufacturing mold and the manufacturing method using a press machine having heat and pressure are also known facts, detailed description thereof will be omitted.

The upper mold 400 and the middle mold 500 are molds for forming the hollow cushion protrusions 160 of the outsole 100, and the lower mold 600 is a bottom pattern emphasizing the landing force and wear resistance of the outsole 100. It is a mold to be carved.

First, the upper mold 400 will be described.

As shown, the upper mold 400 is provided with a protruding surface 410 protruding downward. The protruding surface 410 is a concave portion of the hollow cushioning projections 160 formed on the upper surface of the outsole 100, which is an essential element of the present invention, and a protrusion forming groove 412 corresponding thereto is formed. That is, the protrusion forming groove 412 is formed with grooves inward so that a plurality of hollow cushion protrusions 160 can be formed, whereby a rubber material to be described later is inserted into the protrusion forming groove 412 to make a shape. Therefore, the outer shape of the hollow cushion protrusion 160 may be formed. In addition, the protruding surface 410 is formed with a partition wall forming groove 414 for forming the partition wall 150 of the outsole 100.

Next, the intermediate mold 500 will be described.

As shown, the intermediate mold 500 is a portion forming an embossed shape of the hollow cushion protrusion 160, the molding space portion 510 for receiving the protruding protruding surface 410 of the upper mold 400 to the upper surface Is formed, and a protruding protrusion bar 512 is inserted into the protrusion forming groove 412 into the molding space 510. That is, the protruding rod 512 is semi-vulcanized in the unmolded rubber material in the protrusion forming groove 412 of the upper mold 400 to complete the outer shape of the hollow cushion protrusion 160, the upper mold 400 When exiting from the) the space as much as the protruding bar 512 is secured to complete the hollow interior 162 in the hollow cushion projection (160).

In addition, the bottom surface of the intermediate mold 500 is formed with a pressing surface 520 protruding downward to seal the bottom surface of the hollow cushion protrusion 160 and form the bottom pattern of the outsole 100.

Next, the lower mold 600 will be described.

As shown, the lower mold 600 has a molding space portion 610 is formed to accommodate the protruding pressing surface 520 of the intermediate mold 500 on the upper surface, the bottom surface of the molding space portion 610 The engraving surface 612 which forms the bottom pattern of the outsole 100 is formed. That is, the bottom pattern of the outsole 100 is vulcanized in a state in which an unvulcanized rubber material is in close contact with the engraving surface 612 to form a bottom pattern.

With reference to Figures 9 to 11 attached to the manufacturing method of a shoe sole formed integrally with a hollow cushioning projection according to the present invention using a manufacturing mold made as described above will be described in detail.

As shown, after the intermediate mold 500 is placed on top of the lower mold 600, the pressing surface 520 and the molding space portion 610 of the lower mold 600 protruding to the bottom of the intermediate mold 500 Are bonded to each other and a plate-shaped rubber material having a predetermined thickness is placed therebetween. In addition, after the upper mold 400 is placed on the upper portion of the intermediate mold 500, the protruding surface 410 of the upper mold 400 is coupled to each other in the molding space portion 510 of the intermediate mold 500, wherein the protruding surface The protruding rod 512 is inserted into the protrusion forming groove 412 of 410, and the plate rubber material having a predetermined thickness is positioned therebetween. At this time, since the rubber material is in an unvulcanized state, various shapes can be modified by applied heat and pressure, and each rubber material may have various physical properties or colors and hardness depending on the material to be blended.

In the above state, the upper mold 400 and the middle mold 500, the intermediate mold 500 and the lower mold 600 are completely interviewed with each other to close the mold, and then heat and pressure are applied to the unvulcanized rubber ( 700 is filled in the molding space (510 610). The heat of the mold transferred from the outside to the mold is usually about 150 to 160 ℃, this heat is a molding temperature that is commonly used for manufacturing the outsole 100 by using a rubber material. Then, a constant pressure is applied simultaneously with the heat. The unvulcanized rubber 700 having fluidity by the applied heat and pressure fills the empty molding spaces 510 and 610 in the mold by the applied pressure. At this time, the non-vulcanized rubber 700 having fluidity to form the shape of the hollow cushion protrusion 160 by the protrusion forming groove 412 of the upper mold 400, the protrusion bar 512 of the intermediate mold 500. do. That is, when the protrusion bar 512 of the intermediate mold 500 coupled with the protrusion forming groove 412 of the bottom of the upper mold 400 is removed, the protrusion molding groove 412 is filled with the unvulcanized rubber 700 tightly. A space in which the protruding rod 512 stayed is formed in the center, and the unvulcanized rubber 700 having fluidity is formed on the pressing surface 520 of the intermediate mold 500 and the molding space portion 610 of the lower mold 600. Filled between the engraving surface 612 to form the shape of the bottom surface pattern.

In this manner, after the heat and pressure is applied to the entire mold, after 20 to 30 seconds have elapsed before the unvulcanized rubber 700 undergoes vulcanization, the pressure applied to the mold is released, and the mold is opened to open the intermediate mold 500. After removing only, the upper mold 400 and the lower mold 600 are reassembled to completely integrate the upper mold 400 and the lower mold 600 so that the unvulcanized rubber 700 is in contact with each other to close the mold.

And if heat and pressure are applied secondly, the uncured rubber 700 in the mold is hardened as the vulcanization proceeds, and the uncured rubber 700 divided into upper and lower sides without contact with each other is closely contacted with each other. It is in close contact with the shape formed to seal the lower portion of the hollow cushion protrusion 160, the outsole 100 is completed. That is, the inlet of the protrusion forming groove 412 in which the protruding rod 512 stayed is sealed so that the hollow interior 162 of the hollow cushion protrusion 160 becomes a sealed space, and the hollow interior 162 is caused by the high temperature transmitted from the surroundings. When the air is expanded), the size of the space of the hollow interior 162 is maintained in a reduced or crushed state, thereby forming vulcanization. In addition, when the temperature is lowered after the outsole 100 is completed while the air in the hollow interior 162 is expanded, the air in the hollow interior 162 returns to the atmospheric pressure state, and the hollow interior 162 is in the form of a protruding rod 512. The sealed space is secured.

On the other hand, the shoe sole according to another embodiment of the present invention, before the secondary vulcanization of the unvulcanized rubber 700, the elastic cushion 164 or the liquid bag having a different viscosity in the inner hollow of the hollow cushion protrusion 160 It may also be manufactured by inserting the protrusion bar 512 in advance. This is to adjust the shock absorption and the restoring force of the hollow cushioning projections 160 according to the type of shoes.

11 is a view showing a state in which a separate elastic body is provided inside the hollow of the hollow cushion protrusion according to the present invention.

As shown in FIG. 11, the elastic force of the hollow cushion protrusion 160 is further increased by embedding a separate elastic body 164 in the hollow interior 162 of the hollow cushion protrusion 160 before proceeding to the secondary vulcanization process. Complemented to keep the cushion function until the end of the life of the shoe. In addition, the elastic body 164 is inserted into the size of the protruding rod 512 that can be inserted into the hollow cushion protrusion 160 to prevent the shape of the hollow cushion protrusion 160 from being crushed during the secondary vulcanization. You can also

As described above, the present invention is characterized in that a shoe sole is manufactured using a mold made of an unvulcanized rubber 700, which is an outsole 100 material, and the lower mold 600 is used by using the bottom surface of the intermediate mold 500. With the engraving surface 612 of the) outsole 100 to be the sole, and using the upper surface of the middle mold 500 to be a hollow cushion projection (160) formed with a closed space inside the bottom of the upper mold (400). do.

Therefore, the bottom surface of the outsole 100 according to the present invention becomes a bottom surface excellent in landing power and wear resistance, the top surface of the outsole 100 is the same rubber material, but a plurality of hollow cushion protrusions that may be different in hardness and physical properties ( 160 is to provide a shoe sole having a variety of effects that cause shock absorption and rebound elasticity and air movement.

On the other hand, the manufacturing method of a shoe sole according to another embodiment of the present invention may further include a manufacturing process having a non-breathable plate 200 or a midsole 300 to the top of the outsole 100.

That is, the air flow path 152 connecting the front space portion 130 and the rear space portion 140 to the partition wall 150 of the outsole 100 is molded, and the air flow path 152 in only one direction Install an intermediate check valve 154 to be opened. In addition, there is provided a non-breathable plate member 200 or a midsole 300 through which the inlet outlets 210 and 350 through which air flows to the top of the outsole 100 and the outlet outlets 220 and 360 are formed therethrough.

Here, the front check valves (212, 352) to be opened in one direction only to the inner outflow openings (210, 350), the rear check valves (222, 362) to open only in one direction to the outer outlets (220, 360), the outsole ( By installing the intermediate check valve 154 in the partition wall 150 divided into the front space portion 130 and the rear space portion 140 of the 100, the humid and warm air inside the shoe due to the effect of circulating to the air inside the shoe. By circulating the effect of lowering the temperature inside the shoe and the effect of reducing the fatigue of the foot will be able to relieve stress.

In addition, the propulsion force to absorb the shock transmitted to the body by the air pressure of the hollow interior 162 of the hollow cushion projection 160 and to push up the sole with the repulsive force by the restoring force until the end of the life of the shoe, continuous external force Even the hollow cushioning protrusion 160 has a merit of providing a low-cost shoe sole with the advantage that the cushioning function and the breathable outsole 100 having almost no compressive strain is produced in only one working process.

Finally, the working relationship according to the embodiments of the present invention configured as described above is summarized as follows with reference to FIGS. 1 to 12.

When the user walks with a shoe made using the shoe sole of the present invention, the sole of the foot first starts the heel of the foot and walks while walking on the ground in the middle of the sole and the front of the foot in order.

When walking, when the heel of the foot treads the ground, the non-breathable plate 200 and the outsole 100, which are stepped on the heel of the foot, are compressed. As the 160 is formed, the hollow interior 162 of the hollow cushion protrusion 160 is compressed to absorb shocks. At this time, even if the independent hollow cushion projections 160 are compressed as described above, the plurality of hollow cushion projections 160 distributed on the upper surface of the outsole 100 are compressed inside the hollow interior 162 at the same time. As the air pressure is generated, the air is elastically compressed like a rubber ball, causing the air cushion to be excellent in shock absorption.

And when you step on the foot, the hollow cushioning projections by the good landing force of the material itself forming the outsole 100 and the expansion force that the air that was compressed in the hollow interior 162 of the hollow cushioning projections 160 instantaneously expands ( 160) are restored to the original state at the same time to provide a very soft and rhythmic grounding and repulsive force and propulsion on the sole, such a sense of grounding is repeated sequentially from the heel of the foot to the front of the foot.

As described above, as the outsole 100 and the non-breathable plate 200 are stepped on by the sole and the foot is lifted, air is stored in the sealed inner space formed between the lower portion of the non-breathable plate 200 and the outsole 100. Pumping action is spontaneously active.

In addition, when the back of the foot step on the rear side of the outsole 100, the air filled in the rear space portion 140 while the rear space portion 140 formed on the rear side of the partition wall 150 contracts momentarily, the partition wall 150 Out of the intermediate check valve 154 installed in the air flow path 152 of the) is introduced into the front space portion 130 corresponding to the front of the sole.

The air introduced into the front space 130 is filled with the amount of air is discharged to the inside of the shoe through the front check valve 212 as much as the full amount. That is, when the front side of the non-breathable plate 200 is stepped by the front part of the sole, the hollow cushion projections 160 and the front space portion 130 located in the lower portion of the front side is contracted and the front space portion 130 The air filled in the air is blown out to the front part of the sole through the front check valve 212 installed in the inflow outlet 210 of the non-breathable plate 200, and the ventilated part of the front of the sole that is sweaty and humid Will let you.

At the same time, when the front part of the sole stepped on the front side of the non-breathable plate 200, the rear axle is lifted up, the hollow cushion protrusions 160 and the rear space portion 140 located at the lower side of the rear side that was compressed by stepping on the rear axle At the same time as the foot rear shaft is lifted up, the rear check valve 222 installed at the outer outlet opening 220 of the non-breathable plate 200 sucks the air inside the shoe into the rear space 140 and the rear space portion ( 140 is filled with air.

Since the three front check valve 212, the rear check valve 222 and the intermediate check valve 154 described above is to move the air only in one direction, as described above, the air in the rear space portion 140 to the front space Moving to the unit 130, the air in the front space portion 130 is moved to the front of the sole portion of the shoe inside, the air inside the shoe on the heel of the foot is to be introduced only into the rear space portion 140. Here, the check valve in one direction may be changed in direction depending on the type of shoes by adjusting the direction of the valve.

Therefore, in the present invention, as mentioned above, the inner space is completely sealed between the outsole 100 and the non-breathable plate 200, the outsole 100 and the midsole 300, and the cushioning material is excellent in the inner space. Hollow cushion projections 160 are formed, the hollow inside 162 of the hollow cushion projections 160 is provided with a closed air, so that when the external force is compressed, the pressure is dispersed and compressed and is always firm like a rubber ball. Cushioning and excellent pumping action.

Accordingly, it is possible to provide a shoe sole that relieves the shock transmitted to the body when walking or running for a long time, reducing the fatigue of the body, and making the user's feet comfortable and comfortable by air circulation at all times.

Although the preferred embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. It belongs to the scope of rights.

1 is an exploded perspective view and cross-sectional view of a shoe sole integrally molded with an outsole in a mold according to an embodiment of the present invention;

2 is a view showing a state in which a hollow cushioning projection is provided on the upper surface of the outsole according to an embodiment of the present invention,

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

4 is an exploded perspective view and cross-sectional view of a shoe sole integrally molded with an outsole in a mold according to another embodiment of the present invention;

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

6 is an exploded perspective view and a cross-sectional view of a shoe sole integrally molded with an outsole in a mold according to another embodiment of the present invention;

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 and a cross-sectional view before coupling showing the installation state of the upper mold, the middle mold and the lower mold in order to manufacture the outsole according to an embodiment of the present invention;

9 is a perspective view and a cross-sectional view after the combination of FIG. 8, FIG.

FIG. 10 is a perspective view and a cross-sectional view showing an installation state in which the middle mold of FIG. 9 is removed and the upper mold and the lower mold are combined;

11 is a view showing a state in which a separate elastic body is provided inside the hollow cushion protrusion according to the present invention.

100. Outsole 110. Flooring

120. Edge wall 130. Front space

140. Rear space 150. Bulkhead

152. Air passage 154. Intermediate check valve

160. Hollow cushion projection 162. Hollow inside

164. Elastic 200. Non-breathable plates

210. Inlet outlet 212. Front check valve

220. Outflow outlet 222. Rear check valve

230. Through-hole 300. Midsole

310. Border wall 320. Front space part

330. Rear spaces 340. Bulkheads

342. Air passage 344. Intermediate check valve

350. Outlet and outlet 352. Front check valve

360. Outflow outlet 362. Rear check valve

400. Upper mold 410. Protruding surface

412. Protrusion forming groove 414. Bulkhead forming groove

500. Middle mold 510. Molding space

512. Protruding rod 520. Pressure surface

600. Lower mold 610. Molding space

612. Engraving 700. Uncured rubber.

Claims

In a shoe sole manufactured by injecting an unvulcanized rubber into a mold and applying it by applying heat and pressure,

At least one hollow cushioning protrusion protruding from the upper surface of the flooring,

The hollow cushion projection has a hollow inside, the inside of the hollow air is sealed in the outsole that is continuously deformed and restored by external force by the air pressure

Shoe sole molded integrally with the outsole in a mold containing hollow cushion projections.

In claim 1,

The outsole is,

An edge wall projecting upward around the outside of the flooring,

A partition wall partitioning an inner space surrounded by the edge wall into a front space portion and a rear space portion, and

An air flow path connecting the front space portion and the rear space portion to the partition wall

In claim 2,

The hollow cushion projection is,

A plurality of vertically extending from one side or both sides of the front space portion and the rear space portion is made

Shoe sole molded with outsole in one mold with hollow cushion projection.

In claim 2,

Located in the upper portion of the hollow cushioning projection to seal the inner space of the outsole, the inner outflow inlet through which the air flows through the upper surface of the front space portion of the outsole and the outer outflow inlet through which the air flows through the upper surface of the rear space portion is formed; Non-breathable plate

Shoe sole molded integrally with the outsole in a mold further comprises a hollow cushion projection.

In claim 1,

Located on the upper portion of the hollow cushion projection to seal the inner space of the outsole,

An edge wall projecting downward around the outside of the bottom,

A partition wall partitioning an inner space surrounded by the edge wall with a front space portion and a rear space portion,

Is formed in the partition air passage connecting the front space and the rear space,

An internal outlet opening through which air is flowed through an upper surface of the front space of the outsole, and

Expanded expanded midsole is formed with an external outlet opening through which the air flows through the upper surface of the rear space of the outsole

The method of claim 4 or 5,

An intermediate check valve installed in the air passage and opened only in one direction;

A front check valve installed at the inner outlet and opened only in one direction, and

The rear check valve is installed at the external outlet and opens only in one direction.

The method according to any one of claims 2 to 5,

The hollow cushion projection is,

The elastomer into the hollow interior

In the manufacturing mold of a shoe sole manufactured by injecting an unvulcanized rubber into the mold and applying it by applying heat and pressure,

An upper part provided with a protruding surface projecting downward to a bottom surface, a partition wall forming groove for partitioning the projecting surface into a front space portion and a rear space portion, and a plurality of protrusion forming grooves recessed on one side or both sides of the front space portion or the rear space portion. mold,

An intermediate mold having a molding space portion for receiving the projected bottom surface of the upper mold on the upper surface, a protrusion rod protruding inside the molding space portion to be inserted into the protrusion molding groove of the upper mold, and a pressing surface projecting downward to the bottom surface. , And

A lower mold having a molding space for accommodating the protruding pressing surface of the intermediate mold and an engraving surface forming a bottom pattern of the molding space.

A manufacturing mold for a shoe sole molded integrally with the outsole in a mold containing a hollow cushion projection.

In the manufacturing method of the sole manufactured by the hollow cushioning projection of claim 8 is added to the inside of the mold using a manufacturing mold of the sole molded in one mold with the outsole, and vulcanized by applying heat and pressure,

Filling step of filling the unvulcanized rubber in the molding space of the upper mold and the middle mold, the middle mold and the lower mold, respectively,

A first mold closing step of completely interviewing the upper mold and the intermediate mold, the intermediate mold and the lower mold with respect to each other;

Semi-vulcanization vulcanization step for the semi-vulcanization of the unvulcanized rubber at the same time the upper mold and the middle mold, the intermediate mold and the lower mold molding space,

A second mold closing step of completely interviewing the upper mold and the lower mold with respect to each other after removing the intermediate mold, and

The final vulcanization step of completing the outsole by completely vulcanizing the bottom of the semi-vulcanized rubber bottom of the upper mold and the top of the semi-vulcanized rubber upper surface of the lower mold.

Hollow cushion projections comprising a method of manufacturing a shoe sole molded integrally with the outsole in a mold.

In claim 9,

An air flow path forming step of forming an air flow path connecting the front space part and the rear space part to the partition wall of the outsole, and

Intermediate check valve installation step of installing the intermediate check valve is opened in one direction only in the air flow path

Hollow cushion projections comprising a method of manufacturing a sole sole molded integrally with the outsole in a mold.

In claim 10,

A non-breathable plate bonding step of adhering a non-breathable plate formed through the upper outlet portion of the outsole through which the air flows through the upper surface of the outsole and the outer outlet passage through which the air passes through the upper surface of the outsole;

In claim 11,

Front and rear check valve installation steps of installing a front check valve which opens only in one direction to the inner outlet and a rear check valve which opens only in one direction to the outer outlet;

An upper mold having a protruding surface protruding downwardly to the bottom and a plurality of protruding grooves recessed in the protruding surface;

An intermediate mold having a molding space portion for receiving the protruding bottom surface of the upper mold on its upper surface, a protruding protrusion rod inserted into the protrusion forming groove into the molding space portion, and a pressing surface protruding downward on the bottom surface, and

In the manufacturing method of the sole is manufactured by injecting the unvulcanized rubber into the mold using the manufacturing mold of the sole molded integrally with the outsole in one mold in the mold of the claim 13 and vulcanized by applying heat and pressure,

In claim 14

Located on the upper portion of the hollow cushioning projections to seal the inner space of the outsole, a border wall protruding downward toward the outer periphery of the bottom surface, partition wall partitioning the front space portion and the rear space portion in the inner space surrounded by the border wall, An air flow path formed in the partition wall to connect the front space part and the rear space part, an internal outflow inlet through which air is flowed through an upper surface of the front space part of the outsole, and an external outflow through which air is flowed through an upper surface of the rear space part of the outsole; Expanded foamed midsole with openings

Midsole bonding step of adhering to the top of the outsole