KR101603423B1 - Shoes with outsole formed integrally with shoes body - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a shoe in which a shoe body and an outsole are integrally formed, a mold for manufacturing the same, and a method of manufacturing the same. More particularly, the present invention relates to a shoe sole, The present invention relates to a shoe provided. The outsole includes a plurality of recesses and protrusions and a part of the outer edge thereof is embedded in the outsole, and the center portion includes the anti-slip means coplanar with the bottom surface of the outsole. According to the present invention, even when the user walks the water-impermeable paper sheet by the non-slip device integrally provided on the bottom surface of the outsole together with the plurality of concave-convex parts formed on the bottom surface of the outsole, The sliding force can be prevented by increasing the frictional force of the bottom surface.

Description

[0001] SHOES WITH OUTSOLE FORMED INTEGRALY WITH SHOES BODY [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a shoe having a shoe body and an outsole formed integrally with each other, and more particularly to a shoe having a non-slip outsole capable of preventing friction by increasing frictional force .

Generally, the shoe has a structure for preventing slippage in accordance with the type of shoe. In other words, a stud or a spike is attached to the bottom of a shoe such as a soccer shoe or a baseball shoe used in an athletic event to prevent slippage, and on the bottom of a shoe such as a running shoe or a shoe used in the outdoors, So as to prevent slippage.

However, when walking on the ice road or snowy road in winter, since the sole of the shoe mainly uses synthetic rubber or polyurethane resin, the slippery can not be sufficiently prevented, and the shoe can fall down. In addition, the aqua shoe, which is mainly used in the summer season, has increased the convenience of watering. However, when walking on rocks or gravels wet with water such as a valley or a stream, the slippery is maximized, There was an increasing problem.

On the other hand, although Hyundai is more likely to live indoors than outdoors, shoe soles that are the same as the outsole of a shoe sole that is still used outdoors are widely used in shoes.

However, since the floor of the room is flat on the floor, unlike the outdoor, the above-mentioned uneven groove does not function effectively to prevent slipping. Particularly, in the case of a room such as a bathroom or a bathroom where the water stays or the floor is wet with water, water forms a film like lubricating oil between the recessed and recessed grooves, thereby reducing the frictional force generated when the shoe touches the floor. It does not function at all.

On the other hand, Korean Patent Laid-Open Publication No. 2003-0059752 discloses a non-slip device which is thinly formed in a sheet form and attached to the bottom of a shoe which contacts the ground as a means for solving the above-mentioned problems.

13 and 14, the anti-slip adhesive sheet 100 is formed on one surface of a sheet 111 having water resistance and flexibility and having a predetermined strength and thickness, such as sand, The friction material 112 as the abrasive material or the friction material used as the sandpaper or the like is mixed with the fixing agent 113 by a predetermined thickness or more and then fixed to form a hard and rough friction layer 114, Forming an adhesive layer 115 having a predetermined adhesive strength sufficient to withstand the force acting between the shoe sole and the road surface during walking. And the anti-slip adhesive sheet 100 is attached to the bottom of the shoe sole by the adhesive layer 115. [

Thereafter, the completed non-slip adhesive sheet 100 as described above is cut so as to conform to the shape of the outsole of various shoe so that the cut shape and size are varied as shown in Fig. 8, So that they can be selected and used.

However, since the non-slip device in the above document is attached to the bottom surface of the shoe sole by an adhesive, the anti-skid device easily disengages from the bottom surface of the shoe.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and an object of the present invention is to provide a shoe sole which has at least one recessed portion formed on a shoe sole, And it is an object to provide shoes integrally provided.

According to a first embodiment of the present invention, there is provided a shoe in which a shoe body and an outsole are integrally formed, the shoe comprising: a recessed portion formed at a predetermined depth from a bottom surface of an outsole made of EVA material; Wherein the slot has a first slot groove having a predetermined length adjacent to an edge of the concave portion and a second slot having a predetermined length extending from the first slot groove, At least one non-slip means receiving groove made of a groove; And a seat and a friction material layer are integrally formed and integrally embedded in the outsole in the second slot groove of the non-slip means receiving groove, and in the recess groove, the friction material layer is exposed to the outside by one or more anti- .

Further, an adhesive may be applied to the portion of the non-slip means opposed to the recessed portion.

In addition, an adhesive may be applied to a portion of the non-slip means opposed to the first slot groove.

Preferably, the non-slip means is formed by coating a friction material with a fixing agent over a sheet having water resistance and flexibility and having a predetermined strength and thickness, and then fixing the friction material to form a rough friction layer.

Preferably, the friction material includes at least one of sand, gold stones, and stone particles.

Preferably, a plurality of protrusions coplanar with the bottom surface of the outsole are further formed on the bottom surface of the outsole, and the stone particles are integrally formed on the bottom surface of the plurality of protrusions.

According to a second embodiment of the present invention, there is provided a shoe having a shoe body and an outsole integrally formed thereon, the shoe comprising: a plurality of recessed grooves formed at a predetermined depth formed on a bottom surface of an outsole made of EVA material; And stone particles received in the recess and having an outwardly exposed surface coplanar with a bottom surface of the outsole.

According to a third aspect of the present invention, there is provided an outsole of a shoe, comprising: a recessed portion formed at a predetermined depth from a bottom surface of an outsole made of EVA material; and an elastic member extending from a peripheral edge of the recessed portion, Wherein the slot groove has a first slot groove having a predetermined length adjacent to an edge of the concave portion and a second slot groove having a predetermined length extending from the first slot groove, Preventing means receiving groove; And a seat and a friction material layer are integrally formed and integrally embedded in the outsole in the second slot groove of the non-slip means receiving groove, and in the recess groove, the friction material layer is exposed to the outside by one or more anti- .

Preferably, the non-slip means is formed by coating a friction material with a fixing agent over a sheet having water resistance and flexibility and having a predetermined strength and thickness, and then fixing the friction material to form a rough friction layer.

According to a fourth aspect of the present invention, there is provided a mold for molding a shoe having a shoe bottom part integrally formed with a shoe bottom part in contact with the ground, the mold comprising an upper mold and a lower mold, A girder having an annular shape with a predetermined width for putting the preventing means, the inner edge being integrally formed with the lower mold surface and the outer edge being disposed at a predetermined inclination angle; And at least one fixing pin protruding upwardly from the inside of the girder so as to keep the non-slip means in place, wherein the upper mold or the lower mold is provided with an inlet for filling the molten liquid EVA, Lt; / RTI > The slip prevention means is formed so that its outer edge is larger than the outer edge of the girder and is raised on the girder so that a part of the outer edge thereof is embedded in the shoe sole and the center portion is flush with the bottom surface of the shoe sole And is exposed to the outside of the shoe bottom.

According to a fifth aspect of the present invention, there is provided a method for molding a shoe having a shoe bottom integrally formed with a shoe bottom portion in contact with the ground, comprising the steps of: Fixing the non-slip means and positioning the non-slip means on the girder of the lower mold; Bonding the upper and lower molds by completely inserting the upper and lower molds into each other; A filling step of filling the liquid EVA through an inlet formed in the lower mold while the upper and lower dies are coupled to each other; Expanding and expanding the EVA filled in the mold; A cooling step of cooling the expanded expanded material; And a take-out step of taking out the molded shoes from the mold.

Preferably, the taking-out step comprises blowing air having a pressure of about 80 Kg / cm 2 into the mold.

According to another aspect of the present invention, there is provided a shoe having a shoe body and an outsole integrally formed thereon, the shoe comprising: a recessed portion formed at a predetermined depth from a bottom surface of an outsole made of EVA material; At least one anti-slip means receiving groove having an annular slot groove formed by being inclined radially inward; And at least one anti-slip means which is integrally formed with the sheet and the friction material layer, and which is inserted into the slot groove of the non-slip means receiving groove.

According to another embodiment of the present invention, an adhesive may be applied to a portion of the non-slip means opposed to the recessed portion.

According to another embodiment of the present invention, an adhesive may be applied to a portion of the non-slip means opposed to the slot groove.

According to the shoes of the present invention, the shoe body and the outsole are integrally formed as described above, the shoe is integrally formed with the at least one concave / convex portion formed on the bottom surface of the outsole, The slip can be prevented by increasing the frictional force of the bottom of the outsole which is in contact with the ground.

In addition, since the non-slip means is embedded in the outsole, it is possible to maintain the frictional force continuously while preventing the slip prevention means from falling off even if the outsole is worn out.

1 is a view schematically showing a mold for molding a shoe according to an embodiment of the present invention.
Fig. 2 is an enlarged view showing the configuration of the girder and the non-slip means shown in Fig. 1. Fig.
3 is a side cross-sectional view of an outsole according to an embodiment of the present invention.
4 is a cross-sectional view illustrating a state in which the non-slip device is removed from an outsole according to an embodiment of the present invention.
5 is a bottom view showing the outsole of Fig.
6 is a perspective view showing a shoe formed according to an embodiment of the present invention.
7 is a perspective view showing a bottom surface of an example of a shoe formed according to another embodiment of the present invention.
8 is a perspective view showing a bottom surface of another example of a shoe to which another embodiment of the present invention is applied.
Fig. 9 is a perspective view showing an example in which molded shoes are applied according to an embodiment of the present invention.
10 is a perspective view showing another example in which molded shoes are applied according to an embodiment of the present invention.
11A and 11B are views showing an outsole and a non-slip means of a shoe according to another embodiment of the present invention.
Fig. 12 is a view showing a state where the non-slip means of Fig. 11b is coupled to the outsole of the shoe of Fig. 11a.
13 is a view showing a friction member of the prior art.
14 is a view showing a shoe to which the friction member of Fig. 13 is attached.

BRIEF DESCRIPTION OF THE DRAWINGS The above objects, features and advantages will become more apparent through the following examples in conjunction with the accompanying drawings.

It is to be understood that the specific structure or functional description is illustrative only for the purpose of describing an embodiment according to the concept of the present invention and that the embodiments according to the concept of the present invention may be embodied in various forms, Should not be construed as limited to these.

The embodiments according to the concept of the present invention can make various changes and have various forms, so that specific embodiments are illustrated in the drawings and described in detail in the specification of the present application. However, it should be understood that the embodiments according to the concept of the present invention are not intended to limit the present invention to specific modes of operation, but include all changes, equivalents, and alternatives included in the spirit and scope of the present invention.

The terms first and / or second etc. may be used to describe various components, but the components are not limited to these terms. The terms may be named for the purpose of distinguishing one element from another, for example, without departing from the scope of the right according to the concept of the present invention, the first element being referred to as the second element, The second component may also be referred to as a first component.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when it is mentioned that an element is "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between. Other expressions for describing the relationship between components, such as "between" and "between" or "adjacent to" and "directly adjacent to" should also be interpreted.

The terminology used in the specification of the present application is used only to describe a specific embodiment and is not intended to limit the present invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. It is to be understood that the terms such as " comprises "or" having "in this specification are intended to specify the presence of stated features, integers, But do not preclude the presence or addition of steps, operations, elements, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the meaning in the context of the relevant art, and unless otherwise expressly defined in the specification of the present application, It is not interpreted.

Hereinafter, the present invention will be described in detail with reference to the preferred embodiments of the present invention with reference to the accompanying drawings. Like reference symbols in the drawings denote like elements.

Usually, the material of the outsole is made of urethane resin or ethylene vinyl acetate (hereinafter referred to as "EVA"), and since the urethane resin contains environmental pollutants, And the use of such drugs is limited under severe conditions. In recent years, EVA materials have been widely used instead of urethane resins, and since they have high foaming properties, lightweight and excellent performance outsole can be produced with a small amount of material. As a method of molding the outsole using the EVA material, there are an injection injection method and a press method. The injection injection method is a method in which an EVA material made of a liquid is injected into a mold which is formed to be somewhat smaller than a desired size, and expanded and expanded to produce an EVA outsole. The press method is a method in which a foamed EVA basic compound is pre- And pressurizing, heating and cooling the plate material with a mold to complete the outsole. In the present invention, a method and apparatus for manufacturing an outsole by an injection injection method will be mainly described.

The outsole of a non-slip shoe (hereinafter simply referred to as "outsole") according to an embodiment of the present invention will be described with reference to Figs.

Fig. 1 is a sectional view showing a mold for molding a shoe 1 (see Figs. 6 to 10) having a non-slip outsole or a non-slip outsole according to an embodiment of the present invention. Fig. 1 shows a schematic cross-sectional view of a shoe mold. The mold includes an upper mold 10 for pressing the outsole 1 according to the present invention, and an uneven portion and a non-slip means integrally with the bottom surface of the outsole And a lower mold 20 for molding, and the upper and lower molds are separated from each other.

1, the mold for molding the non-slip outsole 1 of the present invention comprises an upper mold 10 and a lower mold 20, An inlet 30 for filling the EVA in the liquid phase; A girder 60 having an annular shape of a predetermined width for placing the anti-slip means 50, an inner edge integrally formed on a surface of the lower mold 20, and an outer edge disposed at a predetermined inclination angle; And at least one fixing pin (61) protruding upwardly from the inside of the girder to keep the non-slippery means (50) in place, wherein the outer edge of the non-slip means (50) 60 and is raised on the girder so that a part of its outer edge is embedded in the bottom of the shoe and the central part is formed in the same plane as the bottom of the shoe sole and exposed to the outside of the shoe bottom .

The lower mold 20 is fixed on a frame (not shown), and the upper mold 10 moves up and down along a post member (not shown) formed at left and right ends of the frame. An injector (not shown) is provided on the side of the upper mold 10 or the lower mold 20 to inject the EVA material into the mold. In the present specification, only the lower mold 20 including the protrusion, the girder and the anti-slip means constituting the outsole according to the present invention will be described in detail.

The lower mold 20 is a portion where the outsole 1 is formed and a plurality of embossed protrusions 40 are provided to form a concave portion on the lower surface of the outsole 1. [ An inlet 30 through which liquid EVA material is injected from an injector (not shown) is provided on the side of the lower mold 20. The inlet 30 into which the liquid EVA material is injected may be provided in the upper mold 10 instead of the lower mold 20. [

In the state where the upper and lower dies 10 and 20 are coupled, the liquid EVA material melted at about 200 ° C to 300 ° C supplied by the injector (not shown) is charged into the mold via the inlet 30 .

Further, in a state where the upper and lower dies (10, 20) are engaged, predetermined heat and predetermined pressure are applied to the upper and lower molds by a press to expand and expand the EVA material solution. In this case, the heat of the mold transferred from the outside to the mold is about 60 ° C. to 70 ° C., and this heat is generally used for forming outsole of a shoe using a foamed material. As heat and pressure are applied to the entire mold, the heat of the upper and lower molds 10 and 20 is crosslinked by the chemical reaction of the EVA material solution and expanded and expanded.

The EVA material flowing in the upper and lower molds 10 and 20 covers the upper surface of the non-slippery means 50 facing the upper mold 10 as a whole. The EVA material is filled in the concave and convex portions provided in the lower mold 20 and is placed on the upper opening edge portion of the girder 60 and is provided with the slip prevention means 50 (See Fig. 2).

After the EVA material is expanded and expanded, it is aged for about 7 to 10 minutes, and after cooling for about 10 to 15 minutes, the upper and lower molds 10 and 20 are separated. The shoe 1 having an overall shape by removing the upper and lower molds can be taken out of the mold by blowing air having a pressure of about 80 kg / cm 2 into the mold.

Meanwhile, the outsole 1 is made of various materials such as TPR, PVC, PU, and EVA, which are rubber materials and synthetic resins, which are mixed with natural rubbers and synthetic rubbers at appropriate ratios. Can be applied.

1 and 2, the girder 60 including the fixing pins 61 is integrally attached to the lower mold 20 by means of welding or the like, and its shape is formed by the anti-slip means 50, As shown in FIG.

In the shoe in which the shoe body and the outsole are integrally formed by the above-described mold and the manufacturing method, only the configuration of the outsole 1 will be described in detail.

The outsole 1 has a recessed portion a formed at a predetermined depth from the bottom of the outsole and a ring extending from the peripheral edge of the recessed portion a and inclined radially in the outsole 1 (B) having a predetermined length adjacent to an edge of the concave portion and a second slot groove (c) having a predetermined length extending from the first slot groove (b), wherein the slot groove At least one anti-slip means receiving groove; And the seat (53) and the friction material (54) are integrally formed. In the second slot groove (c) of the non-slip device receiving groove, the edge portion of the non-slip means is integrally embedded in the outsole (1) In the recessed portion (a), the friction material layer (54) includes at least one non-slipping means (50) exposed to the outside. As described above, when the liquid EVA, which is the material of the outsole 1, is solidified after the foam expansion and expansion, a part of the edge of the non-slip means 50 (the portion engaged with the second slot groove c of the outsole) 1), the non-slip means 50 can be firmly fixed in the outsole 1. [

Further, an adhesive may be applied to the portion of the non-slip means 50 opposed to the recessed portion (a). In this case, the liquid EVA is fixed to the lower mold 50 in a state in which the anti-slip means 50 previously coated with the adhesive on the surface of the sheet 53 of the anti- Lt; / RTI > Further, an adhesive may be applied to a portion of the non-slip means 50 facing the first slot groove b. In this case, in a state in which a part of the edge of the non-slip preventing means 50 is embedded in the outsole 1, the surface of the friction material layer of the non-slip means 50 corresponding to the first slot groove b of the outsole An additional adhesive is applied.

The non-slip means 50 is formed by applying a friction material containing any one of sand, gold stones, and stone particles on a sheet 53 having water resistance and flexibility and having a predetermined strength and thickness together with a fixing agent And then a rough friction layer 54 is formed. The shape of the non-slip device 50 may be various shapes according to the consumer's preferences such as a circle, an ellipse, a rectangle, a star, and the like, and a manufacturer's demand.

2, in order to embed the non-slip means 50 in the outsole during molding of the outsole 1 according to the present invention, the non-slip means 50 is provided on the upper opening And is formed to be larger from the edge toward the outer direction. The edge portion of the non-slip device 50 is preferably formed to be about 3 to 5 mm larger than the upper opening edge of the girder 60.

This is because when the upper mold 10 is pressed against the lower mold 20, the center portion of the non-slip means 50 placed on the girder 60 is pressed against the upper mold 20 by the press of the upper mold. (See FIG. 3) so that the outer edge thereof is inclined upward toward the upper mold.

Since the EVA material is also filled in the outer region 70 of the girder 60, the EVA material is also filled in the space between the lower edge of the outer edge of the non-slip means 50 and the girder 60.

3, the central portion of the non-slip means 50 is flush with the bottom surface of the outsole 1, and the upper surface of the upper mold The outer edge can be embedded in the outsole (1).

According to the embodiment as described above, the outsole 1 according to the present invention may be provided with the anti-slip means 50 integrally formed with the outsole 1 as shown in FIG.

The non-slippery means (50), together with a plurality of concave-convex portions formed on the bottom surface of the outsole (1), friction with the floor contacting the outsole to prevent slippage.

As in the case of the sandal 300 according to the embodiment of the present invention shown in FIG. 6, the outsole 1 according to the present invention and a complete product formed integrally with a fitting portion that can be fitted between the user's toes . That is, since the outsole and the fitting portion are simultaneously molded by a single process, a separate secondary operation is not required and there is no joint, which makes it possible to use the outsole and the fitting portion for a long period of time.

According to another embodiment of the present invention, as shown in Fig. 7, an outsole 1 according to the present invention includes: a plurality of recessed grooves formed at a predetermined depth formed on a bottom surface of the outsole; And stone particles (80) housed in the recess and having an outwardly exposed surface coplanar with a bottom surface of the outsole. When manufacturing the shoe in which the non-slip outsole according to the embodiment of the present invention is integrally formed, the liquid EVA is injected into the mold while the stone particles 80 are disposed in the concave portion (not shown) of the lower mold forming the protrusion of the outsole The stone particles 80 can be firmly embedded and adhered to the bottom of the protrusion of the outsole when the liquid EVA solidifies after it is expanded and expanded. Thus, by using the stone particles as the slip preventing means, the manufacturing cost of the shoe having the slip prevention function can be lowered. In this case, artificial friction particles may be used instead of stone particles.

8, a plurality of protrusions 90, which are flush with the bottom surface of the outsole 1, are further formed on the bottom surface of the outsole 1, The stone particles can be integrally formed.

According to another embodiment of the present invention, as shown in FIGS. 11A and 11B, in a shoe which is integrally formed with a shoe body and an outsole, the shoe is formed to have a predetermined depth from the bottom surface of the outsole 1 made of EVA material (D) extending from the peripheral edge of the recessed portion (a) and being formed to be inclined in a radial direction inside the outsole; And the sheet 53 and the friction material layer 54 are integrally formed and include at least one anti-slip means 50 which is inserted into the slot groove d of the non-slip means receiving groove. In this case, an adhesive may be applied to a portion of the non-slip means 50 facing the recessed portion (a), and a portion of the non-slip means 50 opposed to the slotted groove (d) Can be applied.

The operation of the non-slip outsole 1 according to the embodiment of the present invention constructed as described above will now be described with reference to the accompanying drawings.

Since the anti-slip means is integrally fixed to the outsole at the time of forming the outsole, it is possible to prevent the anti-slip means from easily separating from the bottom surface of the outsole and to prevent the slip prevention means from continuously maintaining the frictional force There is an effect.

In addition, the non-slip outsole according to the present invention is provided integrally with a plurality of uneven portions together with non-slip means to prevent slippage of the outsole. That is, along with the formation of a plurality of recesses and protrusions on the bottom surface of the outsole, the anti-slip means increases the frictional force of the bottom surface of the outsole in contact with the ground, thereby preventing slippage.

The outsole according to the present invention can produce a mold according to the foaming ratio of the EVA material, so that the foaming ratio can be increased, and the finished product can be produced as a small material, thereby providing a lightweight outsole. In constructing the EVA material, a sterilizing action or the like is performed by adding components such as silicon dioxide (SiO ₂ ), aluminum oxide (Al ₂ O ₃ ), silver (Ag), and sodium (Na) And it adds various fragrance to provide refreshing when worn and to remove foot odor.

In addition, the above-mentioned non-slip means may be a known abrasive paper, abrasive cloth, sand paper or the like having a friction material such as sand or stones attached to one surface of the sheet, and detailed description thereof will be omitted.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, It will be appreciated that various modifications and variations are possible. This application includes these variations and is limited only by the scope of the claims.

1: Outsole
10: Upper mold
20: Lower mold
30: Inlet
40: protrusion
50: Slip prevention means
60: Girder
61: Fixing pin
80: Stone particles
300: Shoes

Claims (4)

delete 1. A shoe having a shoe body and an outsole integrally formed thereon,
(A) formed at a predetermined depth from a bottom surface of an outsole (1) made of an EVA material and an annular slot extending from a peripheral edge of the recessed portion (a) and inclined in a radial direction inside the outsole At least one non-slip means receiving groove having a groove (d); And
(50) integrally formed with the sheet (53) and the friction material layer (54) and fitted in the slot groove (d) of the non-slip means receiving groove,
The non-slippery means 50 is formed by coating a friction material with a fixing agent over a sheet 53 having water resistance and flexibility and having a predetermined strength and thickness and then fixing the same to form a rough friction material layer 54 Wherein the shoe body and the outsole are integrally formed. 3. The method of claim 2,
Wherein an adhesive is applied to a portion of said non-slip means (50) opposed to said recessed portion (a). 3. The method of claim 2,
Wherein an adhesive is applied to a portion of the non-slip means (50) opposite to the slot groove (d).

Images