KR20180104478A - Functional insole - Google Patents

Abstract

The present invention relates to a functional insole. More specifically, the present invention relates to a functional insole which is provided with a honeycomb structured cushion layer having an upper layer and a lower layer on both sides thereof to enhance the morphological stability of the insole while maintaining advantages of the honeycomb structure cushion layer (such as continuous cushioning force maintenance and air permeability enhancement), thereby enhancing wearing comfort of the insole and the function of preventing food injuries.

Description

Functional Insoles {FUNCTIONAL INSOLE}

The present invention relates to a functional insole comprising a cushion layer of a honeycomb structure and an outsole on both the top and bottom surfaces of the cushion layer of the honeycomb structure.

Generally, the insole is inserted into the shoe to enhance the fit of the shoe and to protect the wearer's foot by buffering the shock generated during walking, and at the same time, to minimize fatigue.

However, synthetic resin such as pulp board or EVA (Ethylene Vinyl Acetate) is generally used as a general insole, and such a material has a problem in that the function of the insole is insufficient because the buffer is easily carried when the wearer continuously wears it.

In order to solve this problem, in recent years, a number of insoles having a cushion layer of a honeycomb structure for realizing breathability while maintaining a constant buffering force have been developed, and Patent Literatures 1 to 3 are related prior arts.

Specifically, in Patent Document 1, as shown in FIG. 1, an insole plate and a plurality of cells in the form of a hexagonal column having an internal space are formed. The cells share one side of a hexagonal column to form mutually adjacent honeycomb structures And an upper surface of the cells is connected to the bottom surface of the insole plate, respectively, and the bottom surface of the cells is opened.

2, in the construction of the shoe insole 1 in which the fabric 3 is adhered to the foam 2 as shown in Fig. 2, the honeycomb structure is formed from the heel to the lower side of the foam 2, In which the cushion member 4 of the structure is fixed.

As shown in FIG. 3, Patent Document 3 discloses a honeycomb structure having at least one hexagonal pillar portion having a hexagonal columnar shape and having side walls of the at least one hexagonal pillar portion bonded to each other, A hexagonal line protrusion formed so that one or more hexagonal column portions protrude vertically; a lower adhesive surface 20 formed in the center of the bottom surface of the insole and having a flat shape; at least one acupressure projection 41 having a protrusion shape; And at least one pressure-applying portion 40 disposed on the upper surface of the insole, the pressure-introducing portion 40 including a hexagonal columnar groove-like projection groove 42 having the same number as the pressure-sensitive projection 41 described above.

However, since the conventional honeycomb structure cushion layer uses mainly styrene-butadiene-styrene (SBS) material, there is a problem that the shape stability is very low due to the attachment of the fabric only to the upper surface of the cushion layer of the honeycomb structure.

That is, the shape stability is insufficient due to excessive flexibility, and the wearing feeling is deteriorated. In addition, when the normal footwear is grounded on the ground, the body weight is not dispersed uniformly on the soles of the foot, resulting in lateral flow of the foot. If the shape stability of the insole is insufficient, the ankle is frequently injured There was a problem.

Patent Document 1: Korean Utility Model Registration No. 20-0290595 entitled "Insole for Footwear having Hexagonal Multi-Cell Type Buffer Means" Patent Document 2: Utility Model No. 20-0403436 registered in Korea "shoe insole" Patent Document 3: Korean Patent Registration No. 10-1333728 entitled "Hexagonal Silicone Acupressure Insole"

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a honeycomb structured cushion layer having a honeycomb structured cushion layer, To improve the shape stability of the foot, and thereby to improve the comfort of the foot and the foot injury prevention function of the foot.

The present invention relates to an insole comprising a cushion layer (100) of a honeycomb structure, characterized in that an artificial layer (10) is provided on the top and bottom surfaces of the cushion layer (100) .

The cushion layer 100 of the honeycomb structure may be formed of at least one selected from the group consisting of polyurethane rubber, nitrile rubber, neoprene rubber, butadiene rubber, styrene butadiene styrene rubber, polyurethane resin, chloroprene rubber, thermoplastic polyurethane resin, polyethylene resin, polyvinyl chloride resin, polyester resin, acrylic resin, polyamide resin, ethylene Ethylene vinyl acetate resin or polyolefin resin, it is preferable to use them alone or in combination of two or more. However, the present invention is not limited thereto, and various known rubber or resins can be applied.

And the synthetic layer is made of a nylon fabric, a polyester fabric, an acrylic fabric, a vinyl fabric, a vinylon fabric or a promix fabric, but it is not limited to these, and various well-known fabrics can be applied.

The present invention provides a honeycomb structured cushion layer having an upper layer and a lower layer on both the upper and lower surfaces thereof, thereby improving the shape stability of the insole while maintaining the advantages of the honeycomb structure cushion layer (such as maintaining a constant buffering power and improving air permeability) Thereby improving the feeling of wearing by the wearer and the function of preventing foot injury.

1 is a view showing an insole according to Patent Document 1
2 is a view showing an insole according to Patent Document 2
3 is a view showing an insole according to Patent Document 3
Figure 4 is a perspective view of a functional insole according to the present invention;
Figure 5 is an exploded perspective view of the functional insole according to the present invention;
6 is a cross-sectional view of a functional insole according to the present invention

In order to achieve the above-mentioned effect, the present invention relates to a functional insole. In the drawings and the detailed description thereof, it is to be understood that the present invention is not limited to the construction and operation that can be easily understood by those skilled in the art, The detailed description and the detailed description of the technical structure and operation are omitted or simplified.

Hereinafter, the functional insole according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 4 is a perspective view of a functional insole according to the present invention, FIG. 5 is an exploded perspective view of a functional insole according to the present invention, and FIG. 6 is a sectional view of a functional insole according to the present invention.

4 to 6, the functional insole according to the present invention includes a cushion layer 100 having a honeycomb structure. The functional insole includes a cushion layer 100 having a honeycomb structure, (10) is provided.

That is, while maintaining the advantages of the honeycomb structured cushion layer 100 such as maintaining a constant buffering force and improving air permeability, it is possible to improve the morphological stability of the insole by the artificial layer 10 provided on both the upper and lower surfaces of the scum, Thereby improving the feeling of wearing and the prevention of foot injuries.

Meanwhile, the cushion layer 100 of the honeycomb structure is a cushion layer having a honeycomb structure and having an elastic force. The cushion layer 100 may be a polyurethane rubber, a nitrile rubber, a neoprene rubber, a butadiene rubber, Styrene butadiene styrene rubber, chloroprene rubber, thermoplastic polyurethane resin, polyethylene resin, polyvinyl chloride resin, polyester resin, acrylic resin, acrylic resin, a polyamide resin, an ethylene vinyl acetate resin or a polyolefin resin may be used alone or in combination of two or more of them. However, the present invention is not limited thereto, Various rubber or resin applications are possible.

In addition, the monolayer 10 uses natural fabrics or synthetic fabrics, natural fabrics include cotton, hemp, or wool, synthetic fabrics include nylon fabrics, polyester fabrics, acrylic fabrics, Vinylon fabrics or promix fabrics. However, the present invention is not limited thereto, and various well-known fabrics can be applied.

On the other hand, the adhesion between the cushion layer 100 of the honeycomb structure and the far-field layer 10 can be bonded using a general adhesive, or the material for forming the cushion layer 100 can be adhered to the single layer 10, the cushion layer 100 may be integrally injection-molded and adhered to the antifouling layer 10, and in the case of the injection molding method, the applicant of the present invention has already filed a registration (Korean Patent Application No. 10 -1098941) may be applied to 'an upper part molded integrally with a shoe part and its manufacturing method'.

Meanwhile, in order to measure the morphological stability of the insole according to the present invention, the morphological stability was evaluated according to the KS K 0539 method (contilever method). The results are shown in Table 1 below.

division Example Comparative Example Morphological stability 100mm 55mm
Test standard: KS K 0539 (contilever method)

Test piece: An insole of the type shown in FIG. 4 was used, with a styrene butadiene styrene rubber as the cushion layer of the honeycomb structure, and a polyester fabric as the single layer / the top surface of the cushion layer of the honeycomb structure And those having an artificial layer were used for all of them. In Comparative Example, those having an artificial layer only on the top surface thereof were used.

Test method: The end of the test specimen with a width of 2.5 X and a length of 15 cm is adjusted to the horizontal plane scale 0 of the lapping tester (stand), and then slowly push the end of the test piece until it touches the slope (41.5 °) of the lapping tester. Measure the length of the jeans.

As shown in Table 1, in the comparative example, the length pushed up to the inclined surface is 55 mm, and in the case of the embodiment, the length pushed until reaching the inclined surface is 100 mm. That is, in the comparative example, it can be seen that the flexibility is excessive, and the shape stability (form retentive force) is insufficient due to the excessive flexibility, so that the insole does not feel comfortable and the foot And the ankle is broken. However, in the case of the embodiment, since the shape stability is excellent as compared with the comparative example, the wearing comfort by the insole and the prevention function of the foot injury are improved.

That is, the functional insole according to the present invention maintains the advantages of the honeycomb structured cushion layer 100, such as the maintenance of the buffering force and the improvement of the air permeability, and the shape stability of the insole by the artificial layer 10, So that it is possible to improve the wearing comfort by the insoles and the prevention function of the foot injury.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventions. Will be clear to those who have knowledge of.

100: Cushion layer of honeycomb structure
10: Single layer

Claims (3)

In the insole comprising the cushion layer 100 of the honeycomb structure,
Characterized in that an artificial layer (10) is provided on the top and bottom surfaces of the cushion layer (100) of the honeycomb structure.
The method according to claim 1,
The cushion layer (100)
But are not limited to, polyurethane rubber, nitrile rubber, neoprene rubber, butadiene rubber, styrene butadiene styrene rubber, chloroprene rubber, thermoplastic polyurethane resin Polyolefin resin, polyvinyl chloride resin, polyester resin, acrylic resin, polyamide resin, ethylene vinyl acetate resin or polyolefin resin, And the resin is used either alone or in combination of two or more.
The method according to claim 1,
The artificial layer (10)
Natural fabrics or synthetic fabrics, natural fabrics may be cotton, hemp or wool, synthetic fabrics may be nylon fabrics, polyester fabrics, acrylic fabrics, vinylon fabrics or promix fabrics, ) ≪ / RTI > fabric, or a combination of two or more thereof.

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