KR20160121004A - Hock absorbing in-sole of shoes and method of making the same - Google Patents

Hock absorbing in-sole of shoes and method of making the same Download PDF

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Publication number
KR20160121004A
KR20160121004A KR1020150050334A KR20150050334A KR20160121004A KR 20160121004 A KR20160121004 A KR 20160121004A KR 1020150050334 A KR1020150050334 A KR 1020150050334A KR 20150050334 A KR20150050334 A KR 20150050334A KR 20160121004 A KR20160121004 A KR 20160121004A
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KR
South Korea
Prior art keywords
cushion
foam sheet
powder
insole
urethane
Prior art date
Application number
KR1020150050334A
Other languages
Korean (ko)
Inventor
김호현
유해수
Original Assignee
주식회사 무크
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Publication date
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Priority to KR1020150050334A priority Critical patent/KR20160121004A/en
Publication of KR20160121004A publication Critical patent/KR20160121004A/en

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    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
    • A43B17/02—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined wedge-like or resilient
    • A43B17/03—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined wedge-like or resilient filled with a gas, e.g. air
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
    • A43B17/003—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined characterised by the material
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
    • A43B17/10—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined specially adapted for sweaty feet; waterproof
    • A43B17/102—Moisture absorbing socks; Moisture dissipating socks
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/06—Footwear with health or hygienic arrangements ventilated
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/32—Footwear with health or hygienic arrangements with shock-absorbing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D35/00—Producing footwear
    • B29D35/12—Producing parts thereof, e.g. soles, heels, uppers, by a moulding technique

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

The present invention relates to an insole having excellent impact absorbing properties by using a foam sheet which is obtained by foaming urethane and ageing the same for a fixed time. The insole of the present invention comprises: a cushion having a shape corresponding to the bottom of a shoe so as to absorb the impact on a foot; a non-woven fabric attached to the bottom surface of the cushion; and an inner skin of the insole attached onto the cushion so as to absorb sweat from the foot and give air permeability. The cushion is an urethane foam sheet manufactured by: forming a foam sheet by kneading jade powder, Korean angelica root powder, ginseng powder, Salvia miltiorrhiza powder, and Santalum album powder with water at room temperature, aging the kneading for a week and mixing the aged kneading with an undiluted urethane solution, and then foaming the mixture in water; and aging the foam sheet in a heating room for 48 hours. The insole for shoes according to the present invention: has excellent impact absorbing properties by using the urethane foam sheet aged in the heating room for 48 hours, thereby being able to protect a wearer; and can inhibit the development of foot odor and speed up metabolism by using the foam sheet containing jade powder, Korean angelica root powder, ginseng powder, Salvia miltiorrhiza powder, and Santalum album powder beneficial to humans.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shoe insole having excellent shock absorbing performance,

The present invention relates to a shoe sole and a method of manufacturing the shoe sole, and more particularly, to a shoe sole having excellent shock absorbing performance using a foamed sheet obtained by foaming urethane and aged for a predetermined time, and a method for producing the same.

In general, shoes are worn to protect the foot area of a human body. The shoes are used for sports, shoes to be worn when wearing clothes or suits, safety shoes to be worn when working in the field of machinery or construction, Mountain climbing is divided into mountain climbing. Most of the shoes have an out-sole which comes into contact with the ground, a mid-sole which is located at the upper part of the floor window to support the foot and improves the fit of the shoe, It consists of an upper that covers and protects the foot, and an insole (or insole) that rests on the midsole and rests on the floor inside the upper, supporting the sole of the human body.

On the other hand, the main technique developed for shoes is to minimize the weight of the shoe by absorbing the impact and load applied to the knee and sole of the human body when walking or jumping, or by using special materials, And to suppress the generation of sweat due to smoothness, and the like.

Especially, in the case of shoe insole, it has been developed with a focus on the technology that can absorb the shock to the part directly in contact with the sole of the human body. In addition, many technologies are developed in terms of sweat absorption, ventilation and antibacterial action have.

Polyurethane (PU), Ethylene Vinyl Acetate (EVA) and Latex are mainly used as the material of these insole, and shoe insole is manufactured by foam molding and sheet formation.

That is, when shoe insole is manufactured by foam molding, a foaming material such as polyurethane, ethylene vinyl acetate, or latex is injected into a mold and foamed under a predetermined condition to produce a shoe insole. Then, It is completed through the process of assembling the fabric.

In addition, when shoe insole is manufactured by sheet molding, the fabric is placed on the upper surface of sheet-like polyurethane, ethylene vinyl acetate, and latex material, and then cut into shoe insole, and the cut shoe insole is put into a mold , And then heat-conveyed at 130 to 180 ° C for 6 to 12 minutes and then passed through a cooling press maintained at 10 to 20 ° C so that the end portion of the shoe insole is made into a specific shape in the form of a streamlined shape, Thereby completing the manufacture.

However, the cushion used in such a conventional shoe insole has a problem that the shock absorbing ability is poor.

KR 20-2012-0003291 U KR 20-2013-0001950 U

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made in view of the above problems, and it is an object of the present invention to provide a shoe insole having excellent shock absorbing performance using a foamed sheet obtained by foaming urethane and aged for a predetermined time, will be.

According to an aspect of the present invention, there is provided an insole comprising: a cushion for absorbing a shock applied to a foot in a shape corresponding to a bottom shape of a shoe; A nonwoven fabric attached to a bottom surface of the cushion; And an insole inner skin attached to the cushion to absorb sweat of the feet and provide breathability.

The above cushion is prepared by aging the corn, ginseng, ginseng, danshang, and herbal powder at room temperature with water, aging for 1 week, mixing the aged dough with the urethane raw solution, foaming the foams to form a foam sheet, Wherein the urethane raw material solution is an urethane foam sheet obtained by mixing an isocyanate prepolymer of diphenylmethane diisocyanate (MDI) type, a polyether polyol, a chain extender, a blowing agent a blowing agent, a silicone, and a catalyst may be used.

In order to achieve the above object, the present invention provides an insole manufacturing method comprising: preparing a matted urethane foam sheet; preparing a urethane foam sheet with a difference in thickness between the front and the rear axes; And attaching a foil to the upper surface of the cushion plate as an inner skin, followed by thermoforming.

The shoe insole according to the present invention is excellent in impact absorption performance by using the urethane foam sheet aged in the heat room for 48 hours and not only can protect the wearer, but also contains the beneficial coral, angelica, ginseng, By using the foam sheet, there is an effect that the foot odor can be suppressed and the metabolism can be promoted.

In addition, the shoe insole according to the present invention is advantageous in that antibacterial property and ventilation property are very excellent by using a hanji fabric on an endothelium.

1 is a schematic view showing a structure of a conventional shoe to which the present invention is applied;
2 is an exploded perspective view of a shoe insole having excellent shock absorbing performance according to the present invention,
3 is an assembled perspective view of the shoe insole shown in Fig. 2,
Fig. 4 is a side sectional view of the shoe insole shown in Fig. 2,
5 is a flowchart illustrating a shoe insole manufacturing process according to the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features, and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings. The following examples are merely illustrative of the present invention and are not intended to limit the scope of the present invention.

1 is a schematic view showing a structure of a conventional shoe to which the present invention is applied.

As shown in FIG. 1, the shoe to which the present invention is applied includes a bottom (outsole) 20 directly contacting with the ground at the lowermost portion of the shoe, and a midsole An insole 100 for directly supporting the foot as an inner bottom of the shoe and an upper 40 for covering the upper part of the shoe and the foot and maintaining the overall appearance and shape of the shoe.

FIG. 2 is an exploded perspective view of a shoe insole having excellent shock absorbing performance according to the present invention, FIG. 3 is an assembled perspective view of the shoe insole shown in FIG. 2, and FIG. 4 is a side sectional view of the shoe insole shown in FIG.

As shown in FIGS. 2 to 4, the shoe sole 100 having excellent shock absorbing performance according to the present invention has a shape corresponding to the bottom shape of the shoe and has a cushion 110 for absorbing impact applied to the foot, A nonwoven fabric attached to the bottom surface of the cushion, and an insole inner surface attached to the cushion to absorb sweat of the feet and provide breathability.

2 to 4, the cushion 110 used in the insole 100 according to the present invention is prepared by kneading ogal, angelica, ginseng, danshang, and sesame powder at room temperature with water, aging for one week, Is mixed with a urethane raw liquid and then foamed to form a foamed sheet, which is then aged in a heat room for 48 hours to produce a urethane foam sheet. At this time, the urethane raw liquid is prepared by mixing an isocyanate prepolymer of diphenylmethane diisocyanate (MDI) type, a polyether polyol, a chain extender, a blowing agent, a silicone ), And a catalyst are used.

Also, the urethane foam sheet is prepared by kneading ogal, angelica, ginseng, dansam and monocot powder at room temperature with water, aging the dough at room temperature for one week, mixing the aged dough with the urethane raw liquid, After the foamed sheet was first aged in a heat chamber at 80 to 90 DEG C for 24 hours, the foamed sheet aged in the heat chamber was naturally dried for 24 hours, and the foamed sheet was subjected to secondary aging in a heat chamber at 80 to 90 DEG C for 24 hours Followed by taking out the secondary aged foam sheet from the heat chamber, cooling it in a natural state and drying it.

Referring again to FIGS. 2 to 4, the nonwoven fabric 110 is attached to the bottom of the cushion, and the insole inner fabric 130 can be made of Korean paper cloth. The Korean paper cloth is made of paper- It is a non-toxic fabric that does not detect toxicity of any species in 24 kinds of toxicity test such as aryl amine as raw material. The paper cloth used in the present invention has the characteristics as shown in Table 1 below. Due to the nature of Korean paper, it has a natural pattern of unmilled mackerel. The coating is also coated with a penetration method, . Also, mackerel, which is the main ingredient of Korean paper, has antimicrobial activity because it has a component that inhibits the propagation of bacteria. Particularly, the shoe insole according to the present invention can prevent slipping or the like when the embossed endothelium is used.

Figure pat00001

5 is a flowchart illustrating a shoe insole manufacturing process according to the present invention.

The shoe insole 100 according to the present invention is prepared by preparing a matted urethane foam sheet and then preparing a urethane foam sheet with a slit cushion plate 120 with a difference in thickness between the front and rear axes, The nonwoven fabric 110 is attached to the upper surface of the cushion, and the end fabric 130 is attached to the upper surface of the cushion as an inner skin, followed by thermoforming to complete the insole suitable for the foot (S1 to S4).

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

20: floor window 30: middle
40: Upper 100: Insole
110: Cushion 120: Nonwoven fabric
130: Insole

Claims (4)

A cushion for absorbing an impact applied to the foot in a shape corresponding to a bottom shape of the shoe;
A nonwoven fabric attached to a bottom surface of the cushion; And
And an insole inner skin which is attached to the cushion to absorb sweat of foot and provide air permeability. The cushion according to claim 1, wherein the cushion
Agar for 1 week after mixing with water at room temperature, mixing the aged dough with the urethane solution, foaming it to form a foam sheet, and aging it in a heat room for 48 hours. Wherein the shoe sole is an urethane foam sheet. 3. The method according to claim 2, wherein the urethane stock solution
(MDI) type isocyanate prepolymer, a polyether polyol, a chain extender, a blowing agent, a silicone, a catalyst, and the like. catalyst is mixed with a polyolefin mixture. After preparing the aged urethane foam sheet, the urethane foam sheet is prepared by shaving the cushion plate with a difference in the thickness of the front and rear axes, and an attaching cloth is attached to the bottom surface of the cushion plate. And then thermoforming the shoe sole.
KR1020150050334A 2015-04-09 2015-04-09 Hock absorbing in-sole of shoes and method of making the same KR20160121004A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150050334A KR20160121004A (en) 2015-04-09 2015-04-09 Hock absorbing in-sole of shoes and method of making the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150050334A KR20160121004A (en) 2015-04-09 2015-04-09 Hock absorbing in-sole of shoes and method of making the same

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20120003291U (en) 2010-11-03 2012-05-11 주식회사 엘에스네트웍스 Insole of the arch-support functional shoes with dual air bag for air flow
KR20130001950U (en) 2011-09-16 2013-03-26 조재영 Insole with detachable arch surpport

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20120003291U (en) 2010-11-03 2012-05-11 주식회사 엘에스네트웍스 Insole of the arch-support functional shoes with dual air bag for air flow
KR20130001950U (en) 2011-09-16 2013-03-26 조재영 Insole with detachable arch surpport

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