KR101980376B1 - Safety shoe sole including outsole by insert of protection materials and maufactuaring method of it - Google Patents

Abstract

The present invention relates to a safety shoe sole including an outsole having a bulletproof material bearing plate inserted thereinto. The safety shoe includes an outsole having a plurality of treads formed on a lower surface thereof and grooves formed between the treads, a midsole layered on the outsole, In the shoe sole having a structure in which the insole is laminated and bonded, an inner plate of a bulletproof material is injected and formed integrally with the outersole, and the bulletproof material inner plate protects the groove area from the lower surface of the outsole The present invention is directed to a method of manufacturing a safety shoe sole comprising an outsole with a bulletproof material insert, the method comprising the steps of: A first step of preparing a mold having tread molding grooves formed therein; A second step of disposing a bulletproof material inner plate having holes having the same shape as that of each of the tread molding grooves at positions corresponding to the respective tread molding grooves, in the mold; A third step of injecting the outsole liquid material into the mold to produce an outsole having the bulletproof material inner plate inserted therein; And a fourth step of forming the midsole and laminating and bonding the midsole to the outsole.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a safety shoe sole including an outsole having a bulletproof material insert plate inserted therein, and a method of manufacturing the safety shoe sole,

The present invention relates to a safety shoe and a method for manufacturing the shoe sole, and more particularly, to a safety shoe for a safety shoe, which is manufactured so that a bulletproof material answer plate is insert-molded on an outsole constituting a safety shoe sole, and a method of manufacturing the same.

In general, safety shoes are worn on industrial sites. They are designed to protect the body, especially the feet, in consideration of the risk factors in the industrial field. That is, the upper is made of leather or the like to protect the foot from a sharp object, and a toe cap made of metal is inserted into the tip of the safety shoes to protect the toes. In order to protect the sole, a sole- .

Fig. 1 is a cross-sectional view showing a structure of a conventional general stabilization.

The general sole comprises a top 1 surrounding the foot and a bottom sole which are stacked in this order from the bottom in the order of the outsole 3, the midsole 4, the seat 5, The insert plate 5 is made of a sole-sized metal plate to prevent sharp objects such as nails from penetrating the floor of the safety shoes from the floor and scarring the operator's soles, and is inserted between the midsole and the insole of the safety shoes, Respectively.

Such a conventional metal bearing plate is simply a plate-like metal plate, so that it is difficult for the material to be firmly coupled to the midsole or the insole.

Due to the difference in the flexural strains between the rigid seals and the outsole, the seat plate is peeled off from the outsole, and the plate is easily detached from the outsole and the midsole.

In addition, due to the own rigidity of the bushing, the bending phenomenon that occurs repeatedly every time the operator walks is not smooth, so the worker feels very uncomfortable.

In addition, since the bushings themselves are heavy, it increases the load of the safety shoes and increases fatigue to the worker, which lowers the work efficiency.

In addition, when used for a long period of time, the shape of the anti-tackle plate is slightly deformed and can not be restored.

In order to solve these problems, safety has been disclosed using an anti-abrasion plate made of various materials made of various materials instead of the metal anti-friction plate.

The bulletproof material uses a synthetic resin such as a polymer polyethylene type or a nylon type synthetic resin as a fabric having a certain thickness.

In this case, however, since the armor fiber is simply laminated on the midsole, the midsole and the inner plate are pressed against each other for a long time, and the adhesive strength is rapidly reduced. Therefore, there is a danger that the part where my answer plate is pushed is a risk of penetrating the nail, and the worker is not aware of this condition.

In addition, the bulletproof fiber is a woven fabric so that bullets can effectively be blocked, but a sharp object such as a nail is more likely to penetrate through the woven gaps, so that it is difficult to effectively block the bullet even if it is used as a safety barrier.

- Korean Registered Utility Model No. 20-0408738 (Feb. 7, 2006) "Safety Resistance Boom" - Korean Utility Model No. 20-2008-0005990 (Dec. 4, 2008) "Midsole for Safety Substitution for Subfloor" - Korean Registered Utility Model No. 20-0469039 (Mar. 9, 2013) "Safety Resistance Boards" - Korean Registered Patent No. 10-0964332 (June 6, 2010)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide an anti-bulletproof plate for preventing penetration of a sharp object into an outsole, And a method of manufacturing the shoe sole.

In order to attain the above object, according to the present invention, there is provided a safety shoe sole comprising an outsole having a bulletproof material receiving plate according to the present invention, comprising: an outsole having a plurality of treads formed on a lower surface thereof and grooves formed between the treads; And an insole on the midsole. In the outsole, a part of the anti-bullet material inner plate is inserted and formed integrally with the bulletproof material, And the inner edge of each of the holes is insert-molded into a shape in which a part thereof is inserted into the inside of each of the treads, wherein the bulletproof material inner plate is made of nylon 6 material .

Here, holes may be formed in positions corresponding to the respective treads in the bulletproof material stock, and the inner rims of the holes may be partially inserted into the inside of the respective treads.

Further, a reinforcing plate may be further formed in each of the holes of the flanges of the bulletproof material across the holes.

At this time, the bulletin board can be made of nylon 6 material.

In another aspect of the present invention, there is provided a method of manufacturing a shoe sole for safety use, the shoe having a bulletproof material receiving plate, the method comprising: preparing a mold having a plurality of tread forming grooves; A first step; A bulletproof material inner plate having holes having the same shape as that of each of the tread forming grooves at positions corresponding to the respective tread forming grooves is disposed inside the mold, and inner peripheries of the holes are formed inside A second step of arranging the tread forming groove so as to cover a part of an upper edge of the tread forming groove; A third step of manufacturing the outsole having the bulletproof material inner plate inserted by pressing the solid state material of the outsole uniformly inside the mold and the tread forming groove at a high temperature and a high pressure; And a fourth step of forming the midsole and laminating and bonding the midsole to the outsole.

Here, the inner rim of each of the holes may be partially extended to the inside of the tread forming groove.

Further, a reinforcing plate may be further formed in each of the holes across the holes.

According to the present invention having the above-described structure, since the bulletproof material receiving plate is inserted into the outsole and integrated, the durability is very superior to the structure in which the laminated material is simply joined.

Since only the groove area of the outsole is formed so as to cover the bulletproof material plate, the effect of the material reduction and the foot of the operator can be effectively protected.

Particularly, since a portion of the bulletin board is partially inserted into the tread region, it is advantageous to effectively protect the foot of a worker even if an object such as a nail penetrates the tread and the groove boundary at an inclined or inclined position.

1 is a cross-sectional view showing a structure of a conventional general safety apparatus
FIG. 2 is a cross-sectional view showing the structure of a safety shoe sole including an outsole having a bulletproof material receiving plate according to an embodiment of the present invention
Fig. 3 is a bottom view showing the bottom surface of the safety shoes for sole incorporating the outsole of the bulletproof material counter plate shown in Fig. 2
Figure 4 shows the operating state diagram of the present invention
5 is a perspective view illustrating a method for manufacturing a safety shoe sole including an outsole having a bulletproof material inner plate according to another embodiment of the present invention.
6 is a cross-sectional view showing another embodiment of the anti-bullet material bearing plate of the present invention

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

For a better understanding of the present invention, the description with reference to the drawings is not intended to limit the scope of the present invention. In the following description, a detailed description of related arts will be omitted when it is determined that the gist of the present invention may be unnecessarily blurred.

First, referring to Figs. 2 and 3, a description will be given of a safety shoe including an outsole having a bulletproof material board inserted therein according to an embodiment of the present invention. FIG. 2 is a cross-sectional view showing a structure of a safety shoe sole including an outsole inserted with a bulletproof material counter plate according to an embodiment of the present invention, FIG. 3 is a cross-sectional view illustrating the safety of the bulletproof material counter plate shown in FIG. Fig. 3 is a bottom view showing the lower surface of the shoe sole for shoes. Fig. Here, the dotted line in Fig. 3 represents the boarding in the bulletproof material.

The present invention includes an outsole 100, a midsole 300 and an insole 400. The outsole 100 has a shape in which an anti-bullying material 200 is integrally formed by an insert injection method.

The outsole 100 is provided at the lowermost side of the safety shoe and is a portion contacting the ground.

The outsole 100 may include a base 110 having a sole shape and a plurality of treads protruding from a lower surface of the base 110.

A plurality of the treads 120 are uniformly formed on the lower surface of the base 110 at regular intervals, and the treads 120 are prevented from slipping by being in direct contact with the ground.

A groove is formed between the treads 120.

Such a tread 120 may prevent slippage, but also protects the foot when a pointed object such as a nail is stepped on during operation. That is, generally, since the tread 120 is relatively thick, even if a sharp object is stuck in the tread 120, the foot can be protected without reaching the soles of the operator.

However, if the nail is caught in the groove 130 formed between the treads 120, there is a great risk to the operator.

In order to prevent this, in the present invention, the bulletproof material inner plate 200 is integrated into the outsole 100 by an insert injection method to protect the foot.

Specifically, as shown in FIG. 2, the bulletproof material inner plate 200 is not inserted into the entirety of the base 110, but the bulletproof material inner plate 200 is not provided in the tread 120 region It is possible to have a structure capable of covering only the groove 130 area.

To this end, the bulletproof material inner plate 200 generally has a sole shape, that is, a shape similar to the outsole 100, and a plurality of holes 210 are formed on a surface thereof.

The holes 210 are formed at the same positions corresponding to the treads 120 formed on the outsole 100 and the cross sections of the holes 210 are the same as the corresponding transverse sections of the treads 120 .

Thus, if the cross-section of the tread 120 is rectangular, the corresponding holes may also be of the same shape, and in the case of a triangle, the corresponding holes may be triangular.

Therefore, the bulletproof material inner plate 200 covers the outer region of the outsole 100 excluding the tread 120, that is, the groove 130, so that even if a pointed object penetrates a certain portion of the sole, The foot can be protected, and the bulletproof material can be saved unlike the conventional art.

Preferably, the inside edge of each hole 210 of the bulletproof material inner plate 200 extends inwardly and a part of the hole 210 is inserted into the tread 120 area.

In other words, the cross-sectional area of each hole 210 may be smaller than the cross-sectional area of each corresponding tread 120.

As shown in FIG. 3, it can be effectively blocked when a pointed object in the actual workplace penetrates or tilts the boundary between the tread 120 and the groove 130.

In the present invention, each of the holes 210 inserted into the respective treads 120 may have a width of about 2 to 3 mm.

Meanwhile, the bulletproof material inner plate 200 may be made of nylon 6 material. Nylon 6 is a representative polyamide-based synthetic fiber developed by DuPont, USA. The number of carbon atoms of the monomer constituting the nylon polymer is 6. When the material of the flanges in the bulletproof material is used as nylon 6, the thickness of the flanges can be approximately 2 to 3 mm.

However, the present invention is not limited thereto, and materials used for bulletproof vests such as kevlar, dyneema, twaron, and heracron can be selectively used.

In the present invention, the bulletin board in the bulletproof material is obtained by injection molding bulletproof fiber into a plate shape, not by woven fabric, or by impregnating and drying the bulletproof fiber into synthetic resin.

Next, the midsole 300 is stacked on the outsole 100. The midsole 300 may be made of a material such as pylon or synthetic rubber.

The insole 400 is sequentially coupled to the midsole 300. The insole is joined to the upper 500.

Hereinafter, a description will be made of a method of manufacturing a safety shoe sole including an outsole in which a bulletproof material board is inserted according to another embodiment of the present invention.

FIG. 5 is a perspective view showing a method of manufacturing a safety shoe sole including an outsole having a bulletproof material insert plate inserted therein, and FIG. 6 is a sectional view showing another embodiment of a bulletproof material inner plate of the present invention.

First, the first step is a step of preparing a mold for molding the outsole 100, and a mold 10 having a space for molding the outsole 100 therein is prepared as shown in the figure.

The molding space of the mold 10 molds the base 110 and the bottom surface of the mold 10 forms a plurality of tread forming grooves 11 for molding the tread 120.

Of course, the tread forming grooves 11 may be formed in various shapes and numbers in consideration of the bottom design of the safety shoes or considering the frictional force.

The second step is to place the bulletproof material inner plate 200 in the mold 10 prepared in the first step.

The shape of the support plate 200 in the bulletproof material is formed of a bulletproof material such as nylon 6 in which a plurality of holes 210 are formed as described above. It can be molded separately or cut into finished products.

When the bulletproof material inner plate 200 is disposed on the mold 10, the position is adjusted so as to accurately overlap the tread molding groove 11 corresponding to the hole 210. [ At this time, when each of the holes 210 is partially inserted into the tread 120, the inner rims of the holes 210 may be formed by a part of the upper rim of each of the tread forming grooves 11 .

At this time, an adhesive may be applied and fixed between the bulletproof material inner plate 200 and the bottom surface of the mold 10 to prevent the bulletproof material inner plate 200 from moving during the injection in the third step .

A bulletproof material inner plate 200 having a separate reinforcing plate 220 formed across each of the holes 210 may be used to prevent the outer side of the bulletproof material inner plate 200 from moving as shown in FIG. .

In the third step, the mold 10 having the bulletproof material inner plate 200 disposed thereon is closed, and the outsole liquid material is injected into the inside of the bulletproof material.

The injected liquid material is integrally molded while the plate 200 is inserted into the outsole 100 while filling the molding space and the tread molding groove 11. [ As shown in FIG. 2, when a part of the rim of each hole 210 of the bulletproof material inner plate 200 is formed to extend into the inside of the tread molding groove 11 and dried, (200) can be integrated with the tread (120) partially inserted.

Here, as the outsole liquid material, natural rubber, synthetic rubber, or the like may be used.

Further, a separate thermosetting adhesive may be applied to the bulletproof material inner plate 200 and the outsole liquid material so as to be adhered to each other and then injected.

Meanwhile, in the third step, the outsole can be manufactured by a method other than injection molding.

Specifically, the outsole material and the raw material in a solid state are uniformly arranged in the mold 10 and the tread forming groove 11 in which the bulletproof material inner plate 200 is disposed.

The outsole material may be natural rubber or synthetic rubber, and may be arranged in the form of a lump or a sheet.

In this state, the outsole can be formed by pressing with an upper mold (not shown) under high temperature and high pressure.

The solid material is melted at a high temperature and a high pressure, and is filled with the molding space and the tread molding groove 11, and the bulletproof material inner plate 200 is integrally molded in the inserted state in the outsole 100. 2, a portion of each of the holes 210 of the anti-bullet material inner plate 200 is formed to extend into the inside of the tread molding groove 11, The board 200 may be integrated with the tread 120 partially inserted.

The fourth step is a step of laminating and bonding the midsole 300 on the upper surface of the outsole 100 formed and dried in the third step.

This is briefly described as a known matter. In this step, the liquid material is injected into a separate midsole mold, injection-molded, and then the dried midsole is laminated with the outsole and then bonded to each other.

The insole may be similarly formed and laminated on the midsole.

At this time, in order to join the outsole 100, the midsole 300, and the insole 400, an adhesive may be applied between the respective windows, and a process of mutually bonding under the predetermined heat and pressure may be performed.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention may be embodied in many other specific forms without departing from the spirit or essential characteristics thereof. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined by the scope of the appended claims, as well as the appended claims.

100: Outsole 110: Base
120: Tread 130: Groove
200: Resistant to bulletproof material
210: hole 220: reinforcing plate
300: Midsole
400: Insole
500: upper
10: mold 11: tread molding groove

Claims (9)

1. A safety shoe having a structure in which an outsole having a plurality of treads formed on a lower surface and a groove formed between the treads, a midsole layered on and bonded to the outsole, and an insole layered on the midsole,
Wherein a part of the anti-bullet material bearing plate is inserted into the outsole to be integrally formed,
Holes are formed at positions corresponding to the respective treads on the flange of the bulletproof material to cover the groove area on the lower surface of the outsole,
Wherein the inner edge of each of the holes is insert-molded into a shape in which a part is inserted into the inside of each of the treads, wherein the bulletproof material inner plate is made of nylon 6 material. . delete The method according to claim 1,
And a reinforcing plate is further formed across the hole in each of the holes of the flange in the bulletproof material, wherein the reinforcing plate is inserted into the hole. delete A method for manufacturing a shoe sole for safety purposes,
A first step of preparing a mold having a plurality of tread forming grooves;
A bulletproof material inner plate having holes having the same shape as that of each of the tread forming grooves at positions corresponding to the respective tread forming grooves is disposed inside the mold, and inner peripheries of the holes are formed inside A second step of arranging the tread forming groove so as to cover a part of an upper edge of the tread forming groove;
A third step of injecting a liquid material of the outsole into the mold to produce the outsole having the bulletproof material inner plate inserted therein;
And a fourth step of forming a midsole and laminating and bonding the midsole to the outsole. A method for manufacturing a shoe sole for safety purposes,
A first step of preparing a mold having a plurality of tread forming grooves;
A bulletproof material inner plate having holes having the same shape as that of each of the tread forming grooves at positions corresponding to the respective tread forming grooves is disposed inside the mold, and inner peripheries of the holes are formed inside A second step of arranging the tread forming groove so as to cover a part of an upper edge of the tread forming groove;
A third step of manufacturing the outsole having the bulletproof material inner plate inserted by pressing the solid state material of the outsole uniformly inside the mold and the tread forming groove at a high temperature and a high pressure;
And a fourth step of forming a midsole and laminating and bonding the midsole to the outsole. delete 7. The method according to any one of claims 5 to 6,
Wherein the hole is formed with a reinforcing plate across the hole. ≪ RTI ID = 0.0 > 11. < / RTI > 7. The method according to any one of claims 5 to 6,
Wherein the bulletproof material is made of a nylon 6 material. The method of manufacturing a safety shoes according to claim 1,

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