KR101759164B1 - footwear - Google Patents

Abstract

In the present invention, the paint is not applied to shoes when the paint is applied to a ship, a car, a product, or the like. The protection cover can be detached with a hook or a Velcro tape on the other hand, and it is possible to attach and detach the protective cover in three steps by simultaneous foaming of the three parts of the foamed molded article having different properties and functions in consideration of the order in which the feet touch the ground when walking. The present invention relates to an improved shoe boot, which can provide a more comfortable and stable feeling without wearing.

Description

Functional footwear {footwear}

The present invention relates to a functional shoe boot, and more particularly, it relates to a functional shoe boot, which is capable of detachably attaching a protective cover with a hook or a Velcro tape on the front side, So as to provide a more comfortable and stable feeling without giving a foot to the feet during walking or running.

With the development of the shoe industry, the function of the shoe has been provided not only to protect the feet but also to a lot of functional shoes designed and designed to meet specific purposes. In addition, as a part of fashion, shoes with various designs and colors are being developed. In addition, shoes that can be assembled together have been proposed, which have been developed for the purpose of reusing only the worn parts when one part is worn, or for replacing upper parts of different colors or designs .

A shoe boot is an assembled shoe boot that is sewn on one side of a zipper with a slit inserted into the outer circumference of a shoe soles and a side surface of a zipper with an insert jaw on the outer perimeter of the shoe. Footwear slippers are made by separating the shoe outsole and upper into two halves and then combining them with a zipper.

Another shoe boot is a detachable shoe boot. The boot shoe comprises a shoe sole and an upper shoe. The shoe shoe includes a main detachment means along the connecting portion of the shoe sole and upper and a lid means of a predetermined width for covering the main detachment means And an auxiliary attachment / detachment means is provided between a predetermined portion of the inner side surface of the cover means and a predetermined portion of the shoe sole, which is a corresponding portion of the inner side surface of the cover means, And a flow preventing means adapted to prevent flow of the upper from the sole.

The assembled shoe boot is constructed to allow the upper and shoe sole to be detached and joined together, and the entire upper of the shoe is combined with the shoe sole using a zipper.

When the upper and the shoe sole are completely halved and the entire upper is joined with the zipper to the sole, a lot of water is penetrated through the front part of the shoe and the front part is most damaged in the upper part. The rainwater can easily penetrate into the shoe and the front part connected by the zipper is easily damaged, resulting in durability. In addition, since the upper part has a complete shoe shape, if it is pressed by a heavy load during wrong storage, the shape itself will be deformed and deformed even if it is joined to the shoe sole.

The shoe midsole is universally used on the upper part of shoes combined with the bottom of shoes when manufacturing shoe. It is attached to the upper surface of the shoe sole to prevent the bending part made of the groove of the shoe sole and to improve the fit when inserting shoe insole. It is used to put shoes insole on top.

The shoe midsole is mainly made of one kind of synthetic resin material such as foamed urethane, PVA, TPA or EVA, and maintains the same foaming ratio and hardness as a whole. However, it is necessary to manufacture a shoe sole suitable for walking in consideration of the fact that the foot touches the ground in the order of the heel, the arch, and the front of the foot when walking. To this end, a shoe midsole having a shock absorbing material formed on a predetermined portion of a shoe midsole corresponding to a front or rear portion of the sole has been developed.

A body member forming step of forming a body member having a shape corresponding to a shape of a sole of a human body and having a shape in which a hole is formed in at least one of a dragon blood region or a heel region of a human sole; And a material of latex or an impact-absorbing material is injected into the frame and foamed so that a material of the latex or an impact-absorbing material is bonded to the fuji body member as one layer on the upper surface of the fuji body member, A latex or shock absorber plate forming step in which the material of the latex or the shock absorbing material is protruded from the lower surface of the fuji body member through the hole and is coupled to protrude from at least one of a dragon blood area or a heel area of the sole of the human body A method for manufacturing a shoe soles including the shoe sole is disclosed.

The process of forming holes in a specific area of the shoe sole and forming a hole in the hole and injecting the shock-absorbing material such as latex into the hole to foam the shoe so that the productivity is deteriorated, and the body member and the shock- Since they are formed separately, they are inevitably deteriorated in bonding force between the two, compared to molding by simultaneous foaming, and the front and rear portions are formed of an impact-absorbing material.

Considering the order in which the feet are touched to the ground during walking, it is necessary to develop a shoe sole that has a simple manufacturing process and excellent bonding force between the foamed constituents, while differently configuring the characteristics and functions of the material of the shoes.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems and it is an object of the present invention to provide a shoe sole that is more suitable for walking by forming a foam structure having different characteristics or functions of each part by dividing the middle of the shoe into three parts, And to provide a manufacturing method thereof. In addition, the present invention provides a method for manufacturing a shoe midsole in which an expanded molded article is integrally formed by simultaneous foaming and compression molding of foamed constituents having different characteristics and functions of three parts, and the binding force between the respective foamed constituents is excellent. The present invention can produce a product by a simple manufacturing process by forming a foamed material having different constituent materials and composition ratios by compression molding in a mold of a shoe midsole so as to prevent foaming of each material during compression molding, The present invention provides a method for manufacturing a shoe sole that can minimize the defective rate by controlling the rate.

The present invention relates to a shoe boot with a sole 10 and an ankle upper 20 attached to the top of the sole 10; A shoe boot with a sole (10) and a knee lower part upper (20-1) coupled to an upper part of the sole (10). A shoe boot with a sole 10 and a knee lower upper 30 joined to the sole 10 by a Velcro tape 40; And a sole boot having a sole 10 and a knee lower upper 30 joined to the upper of the sole 10 by a jack 50; Which is one of the shoes of the present invention.

The footwear of the present invention can be fastened and united by being able to be connected or separated by a U-shaped lower sole and an upper upper by a zipper, thereby preventing inflow of water through the front portion of the shoe and improving durability There is an effect that can be.

Since the shoes of the present invention can be stored flatly in the form of a plate when the upper upper is attached, it is easy to clean and the shape can be prevented from being deformed by the load. Also, You can wash it. Also, since the upper upper part of the same size is provided in several different colors or designs, the user can wear the upper upper part according to his or her preference or season, so that it is suitable as fashion shoes and has a plurality of shoes as one shoe .

According to the present invention, it is possible to manufacture the shoe midsole according to the characteristics and functions required in each part by dividing the foot into three parts considering the order in which the feet touch the ground. According to the present invention, it is possible to manufacture an integrated foamed molded article by simultaneous foaming of three foamed constituents having different characteristics or functions by compression molding, so that it is possible to manufacture a shoe midsole having excellent bonding force between the foamed constituent constituting the foamed molded article. According to the present invention, it is possible to manufacture a shoe midsole by compression molding of a foam material having different constituent materials and composition ratios, respectively, by a relatively simple process, so that not only the productivity can be improved but also the foaming ratio of each material can be controlled, Can be prevented from leaning to one side and the defect rate can be minimized.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view of a shoe boot according to a preferred embodiment of the present invention; Fig.
FIG. 2 is a perspective view of a protective cover of a shoe boot according to another embodiment of the present invention. FIG.
Fig. 3 is a perspective view showing a horsepower upper part formed on the bottom plate of the present invention.
FIG. 4 is a perspective view of a shoe boot according to an embodiment of the present invention, in which a lower knee upper is joined with a Velcro tape. FIG.
5 is a perspective view of the sole of the shoe sole of the present invention.
6 is an exploded cross-sectional view of a shoe sole of a shoe sole according to the present invention.

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

It is to be understood that the words or words used in the specification and claims are not to be construed in a conventional or dictionary sense and that the inventor can reasonably define the concept of a term in order to best explain its invention in the best possible way And should be construed in light of the meanings and concepts consistent with the technical idea of the present invention.

Therefore, the embodiments described in this specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It is to be understood that equivalents and modifications are possible.

The present invention relates to a shoe boot with an upper adjusting strap formed on a shoe boot which can be worn on the outside of a shoe, and having an outsole 10 and an ankle upper 20 attached to an upper portion of the sole 10; A shoe boot with an upper adjusting strap and a sole 10 and a knee lower part upper 20-1 coupled to an upper portion of the sole 10; A shoe boot in which an upper adjusting strap is formed and the knee lower upper 30 is joined to the upper part of the sole 10 and the sole 10 by a Velcro tape 40; And a sole boot having a sole 10 and a knee lower upper 30 joined to the upper of the sole 10 by a jack 50; The present invention relates to a shoe boot.

In the present invention, the sole comprises a first foamed structure (11) composed of an elastic material having an upper foot located on the upper portion thereof, a second foamed structure (11) formed of a hard material adjacent to the first foamed structure, And a third foam structure (13) formed of an impact-absorbing material adjacent to the second foam structure is integrally formed, and the third foam structure (11) is formed at one edge of the first foam structure (11) Wherein the first foamed constituent (11) is composed of 50 to 70 parts by weight of ethylene vinyl acetate, 20 to 40 parts by weight of polyethylene and 5 to 10 parts by weight of an ethylene-propylene rubber Wherein the second foaming constituent (12) component comprises 50 to 70 parts by weight of ethylene vinyl acetate, 5 to 20 parts by weight of polyethylene and 10 to 30 parts by weight of a nitrile-butadiene rubber or ethyl Wherein the third foamed constituent (13) comprises 40 to 50 parts by weight of ethylene vinyl acetate, 40 to 50 parts by weight of an ethylene-butylene-styrene copolymer, 1 to 10 parts by weight of an ethylene-propylene rubber And 1 to 10 parts by weight of a butadiene rubber, wherein the amount of the foaming agent contained in each of the foaming materials is 1.5 to 7 PHR.

The shoe boot of the present invention is a shoe boot with a sole 10 and an ankle upper 20 attached to an upper portion of the sole 10 as shown in Fig. A shoe boot with a knee lower part upper part 20-1 coupled to the upper part of the sole 10 or a shoe upper part 30 with a knee lower upper part 30 joined to the upper part of the shoe 10 by a Velcro tape 40, A shoe boot with a sole 10 and a knee lower upper 30 joined to the upper of the sole 10 by a jack 50 as shown in FIG. 4; , ≪ / RTI >

5 to 6, the sole according to the present invention includes a first foamed structure body 11 made of an elastic material having a foot front portion disposed on an upper portion thereof, a rigid material adjacent to the first foamed structure body, And a third foamed structure body 13 formed of an impact absorbing material adjacent to the second foamed structure body is formed integrally with the second foamed structure body 12.

In the shoe sole of the present invention, the sole is made of any one material selected from synthetic resin and rubber, and synthetic resin or natural rubber including ethylene vinyl acetate copolymer (EVA), polyester, polyurethane and PHYLON, synthetic rubber , And a rubber including a foamable synthetic rubber.

In the shoe sole of the present invention, it is preferable that the sole is made of a material having a hardness of 30 to 70 (measured by a Japanese ASKER TYPE C hardness meter: CELLULAR RUBBER & YARN PACKAGE DUROMETER HARDNESS hardness meter). In the shoe boot of the present invention, when the hardness of the sole is less than 30, it is too soft to serve as a supporting body, and when the hardness is 70 or more, it is too hard to act as an elastic body.

As shown in FIGS. 5 to 6, according to the present invention, there are provided a first foamed structure 11 made of an elastic material having a front foot positioned thereon, a second foamed structure 11 formed of a hard material adjacent to the first foamed structure, (10), and a third foamed structure (13) formed of a shock absorbing material and located adjacent to the second foamed structure body and having a foot rear portion at an upper portion thereof are formed integrally with the first foamed structure body (13) from the edge to a height (b) in the direction of the other edge of the shoe sole.

As shown in FIGS. 5 to 6, according to the present invention, there are provided a first foamed structure 11 made of an elastic material having a front foot positioned thereon, a second foamed structure 11 formed of a hard material adjacent to the first foamed structure, (10) for a shoe midsole in which a second foam structure (12) and a third foam structure (13) formed of an impact-absorbing material adjacent to the second foam structure at an upper portion of the foot step; Cutting the foamed molded product (10) from the one edge to the other edge along a slanting line formed by tapering from a height to b height and cutting and separating the foamed molded product (10) into an upper molded product and a lower molded product; And a step of manufacturing the shoe sole by using the upper molded body and the lower molded body, respectively.

The shoe sole according to the present invention comprises a first foam structure (11) in which a foot front is placed at an upper part, a second foam structure (12) in which an arch part of a foot concaved at the top is placed and a third foam structure (13) Each of these foam assemblies is integrally formed to form one foam molding for a shoe sole.

In the present invention, since the feet come into contact with the ground in the order of the rear part of the foot, the arch part and the front part of the foot in the present invention, the third foamed structure 13, which first touches the ground in this order, The constructor 12 is formed of a hard material so as to firmly support the center portion of the concave foot, and the first foam structure 11 is formed of an elastic material capable of pushing the ground so as to prepare for the next walking .

In the present invention, it is preferable that the expansion-molded article is produced by compression molding in order to improve the bonding force between the foam constituents and to improve the production efficiency. Each foamed material containing a resin, a foaming agent, a cross-linking agent, and other additives is arranged in a mold and simultaneously foamed under high-temperature pressurization, whereby an integrally formed foamed article can be produced.

The foaming constituents 11, 12 and 13 according to the present invention are formed to have necessary properties in consideration of the order in which the feet touch the ground. Such properties can be controlled by the compositions and ratios of the resin components as main ingredients, additives such as foaming agents, have.

In the present invention, the first foamed structure 11 requiring high elasticity is made of ethylene vinyl acetate (EVA), polyethylene (PE), ethylene propylene diene monomer (M-class) rubber (EPDM) And a first foaming material composed of a foaming agent, a cross-linking agent, and the like.

In the present invention, the resin contained in the first foamed material is composed of 50 to 70 parts by weight of EVA, 20 to 40 parts by weight of PE and 5 to 10 parts by weight of EPDM based on 100 parts by weight of the resin, and the content of the foaming agent is 1.5 to 7 PHR per hundred resin. When the first foam material containing such a resin component and an additive is charged into a mold and foamed at a foaming ratio of 120 to 170%, a first elastic foam having a high elasticity maintaining a hardness of 20 to 60 (Asker C type) (11) can be obtained.

In the present invention, the second foamed structure 12, which is required to have high rigidity, is made of ethylene vinyl acetate (EVA), polyethylene (PE) and nitrile-butadiene rubber (NBR) EPDM: ethylene propylene diene monomer rubber), and a second foaming material composed of a foaming agent, a crosslinking agent, and the like.

In the present invention, the resin contained in the second foamed material is composed of 50 to 70 parts by weight of EVA, 5 to 20 parts by weight of PE and 10 to 30 parts by weight of NBR or EPDM based on 100 parts by weight of the resin, and the content of the blowing agent is 1.5 to 7 PHR (parts per hundred resin). When such a second foamed material is foamed at a foaming ratio of 120 to 170%, it is possible to obtain a highly elastic second foamed constituent 120 maintaining a hardness of 40 to 80 degrees (Asker C type standard). Since the second foam structure should be able to firmly support the foot arch, it is preferable that the second foam structure is higher in hardness than the first foam structure and the third foam structure.

In the present invention, the third foamed structure 13, which is required to have a shock absorbing function, is made of ethylene vinyl acetate (EVA), ethylene-butylene-styrene copolymer (EBSC), ethylene propylene rubber And a third foamed material composed of a resin including an ethylene-propylene diene monomer (EPDM) and a butadiene rubber (BR), a blowing agent, a cross-linking agent and the like.

In the present invention, the resin contained in the third foamed material is composed of 40 to 50 parts by weight of EVA, 40 to 50 parts by weight of EBSC, 1 to 10 parts by weight of EPDM and 1 to 10 parts by weight of BR, based on 100 parts by weight of the resin, The content is preferably 1.5 to 7 PHR (parts per hundred resin). When such a third foamed material is foamed at a foaming ratio of 120 to 170%, it is possible to obtain a highly elastic third foamed constituent 13 which maintains a hardness of 20 to 60 degrees (Asker C type standard).

The foam structure for a shoe midsole according to the present invention may be formed of only an expansion molding body in which the first foam structure, the second foam structure and the third foam structure are integrally formed, but a separate shock- An impact-damping layer may be further provided between the two layers.

In the present invention, ethylene vinyl acetate and ethylene propylene rubber are included in each of the foaming materials for forming the foaming mold for shoe midsole. Ethylene vinyl acetate (EVA) used in the foam molding for shoe midsole is excellent in flexibility as a thermoplastic resin, The vinyl acetate (VA) has good compatibility with additives, and is excellent in cross-linking and foaming ability, and is currently used most as a base resin for a footwear foam.

In the present invention, the foamed molded article is preferably foamed at a foaming rate of 120 to 170%, and it is preferable that the first foamed material and the third foamed material are foamed at the same ratio in order to prevent the sticking to one side during the foaming process .

In the foamed molded article of the present invention, the hardness of the first foamed constituent foamed with the first foamed material and the foamed foamed material foamed with the third foamed material is 20 to 20% based on the Eskar C type, 60 °, and the second foamed structure foamed with the second foamed material preferably has a hardness of 40 to 80 °. It is preferable that the second foam structure is manufactured with a higher hardness than the first foam structure and the third foam structure because the concave arch portion of the foot must be firmly and stably supported.

When the foamed molded article for shoe midsole according to the present invention is produced, it is not necessary to carry out a separate secondary mold work for manufacturing the shape of a shoe midsole because the foamed molded article of the finished shoe midsole can be obtained only by the primary mold working, It is possible to prevent unnecessary waste. According to the manufacturing method of the present invention, not only the product production efficiency can be improved significantly, but also the loss of the foamed material can be prevented, resulting in a cost saving effect.

Since the primary expanded molded article foamed in the present invention is formed in a symmetrical structure, the foamed molded article is cut into a tapered A-A 'line, and the piece is placed between the molds. The slice consists of a foamed constituent in which the first foamed material is foamed, a foamed constitution in which the second foamed material is foamed, and a foamed constituent in which the third foamed material is foamed. After the molding of the foaming constituent is molded at 145-160 ° C for 5-20 minutes and then subjected to a cooling and pressurizing process, a secondary foamed molded article having a shoe midsole is obtained, from which the foamed molded article The finished product can be obtained.

According to the present invention, it is possible to manufacture a shoe midsole having a property very suitable for walking by compression molding by a relatively simple process, and the bonding force between each foam structure is excellent, so that the product defect rate can be remarkably lowered and the production efficiency can be improved .

10: outsole 20: upper
11: First Foam Constituent 12: Second Foam Constituent
13: the third blowing constituent

Claims (3)

In a shoe boot,
The boot is a shoe boot in which an upper adjusting strap is formed and an outsole (10) and an ankle upper (20) are coupled to an upper portion of the sole (10)
A second foam structure 12 formed of a hard material adjacent to the first foam structure and positioned on the top of the first foam structure 11; And a third foamed structure (13) formed of an impact absorbing material adjacent to the second foamed structure body is integrally formed,
Wherein the first foamed structural body (11) is composed of 50 to 70 parts by weight of ethylene vinyl acetate, 20 to 40 parts by weight of the first foamed structural body (11) Wherein the second foaming constituent (12) comprises 50 to 70 parts by weight of ethylene vinyl acetate, 5 to 20 parts by weight of polyethylene and 10 to 30 parts by weight of a nitrile- Wherein the third foamed constituent (13) comprises 40 to 50 parts by weight of ethylene vinyl acetate, 40 to 50 parts by weight of an ethylene-butylene-styrene copolymer, 1 to 10 parts by weight of ethylene -Propylene rubber and 1 to 10 parts by weight of butadiene rubber, and the amount of the foaming agent contained in each of the foam materials is 1.5 to 7 PHR.






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