WO2021210711A1

WO2021210711A1 - Method for manufacturing customized insole, and customized insole

Info

Publication number: WO2021210711A1
Application number: PCT/KR2020/005280
Authority: WO
Inventors: 란싱우; 조재훈
Original assignee: 란싱우; 웨스트 차이나 호스피탈, 쓰촨 유니버시티; 웨스트 차이나 프리시전 메디신 인더스트리얼 테크놀로지 인스티튜트; 조재훈
Priority date: 2020-04-17
Filing date: 2020-04-22
Publication date: 2021-10-21
Also published as: KR102185683B1; CN113519980A; CN113519980B

Abstract

The present invention relates to a shoe insole and, specifically, to a method for manufacturing a customized insole optimized to fit physical characteristics such as the walking habits of a user, the method comprising: a first step of preparing an insole body made from a material having cushioning and restoring force, such as EVA; a second step of coupling a supporter made from a shape memory polymer (SMP), so as to cover the lower surface of the insole body, and injection-coupling the supporter so that pressure-concentrating parts with a relatively thin thickness are formed at a plurality of regions at which local foot pressure is greatly generated during walking; a third step of applying predetermined heat to the supporter so that the shape thereof is changeable when pressure is applied; a fourth step of placing the supporter on a predetermined molding pad; a fifth step of applying foot pressure through the upper surface of the insole body so as to deform the shape of the supporter according to the foot pressure of the user so that the upper surface of the insole body is fixed in the shape of the sole of a user's foot; and a sixth step of attaching pressure-dispersing pads to the pressure-concentrating parts.

Description

Manufacturing method of personalized insoles and personalized insoles

The present invention relates to an insole for footwear, and more particularly, to a method for manufacturing a personalized insole optimized for a user's body characteristics, such as his or her walking habit, and a technology for a personalized insole according thereto.

For humans who walk upright, feet are more important than any other organ, and in order to live a long and healthy life, it is necessary to take good care of the feet. In particular, medically, it is known that there are acupressure points connected to various organs of the body on the feet, and for this reason, the feet are sometimes called the second heart.

There are various types of shoes, and the most common shoes, such as sneakers, consist of an upper, an insole, a midsole, and an outsole as main components.

The insole is seated in the inner space surrounded by the upper, and becomes a part where the sole comes into direct contact when the user wears the shoe. Research on insoles is being actively carried out in an effort to improve the fit and have a beneficial effect on the feet and the human body. In addition, modern people who wear shoes and spend all day living have a lot of foot diseases such as athlete's foot due to poor ventilation. There are many cases where it is difficult to walk, and in severe cases, the body shape is deformed and it is difficult to walk.

In order to solve this problem, various shoes and insoles have been proposed to alleviate the impact while walking.

As a representative prior art, "Insole having a buffering action and a manufacturing method thereof" of Korean Patent Registration No. 10-0758023 is known.

1 is a perspective view of an insole having a cushioning action according to the prior art, and as shown in the prior art, in the insole formed by attaching a fabric to a sole plate made of synthetic resin, the heel portion 112 of the sole plate 110 It is coupled on the bottom surface 114 and includes a buffer member 10 formed of a synthetic resin material having elasticity so that the impact force is absorbed while being contracted and restored according to the load applied during walking, and the buffer member 10 is the bottom surface ( 114) having a plurality of first elastic protrusions 12 that are formed to protrude downward, and a plurality of wrinkles 13 that are contracted and restored in the vertical direction around the side surfaces of the first elastic protrusions 12 are formed it is characterized by

However, generally industrially mass-produced shoes have a limitation in that they cannot give the best satisfaction to individual users because they are manufactured in consideration of the physical characteristics of average people.

Therefore, in the present invention, the insole is manufactured by measuring the foot pressure of each user so that the user can walk more comfortably and stably, and a pad for pressure distribution can be attached to the area where a lot of foot pressure is generated. We want to provide you with a method and personalized guide.

The method for manufacturing a personalized insole of the present invention for achieving the above-mentioned problem includes a first step of preparing an insole body molded from a material having cushioning and restoring force, such as EVA; A supporter made of a shape memory polymer (SMP) material is coupled to cover the lower surface of the insole body, and a plurality of areas in which a lot of local foot pressure is generated during walking are injected such that a pressure concentration portion having a relatively thin thickness is formed. a second step of allowing them to be combined; a third step of applying a predetermined heat to the supporter so that the shape can be changed when pressure is applied; a fourth step of placing the supporter on a predetermined molding pad; a fifth step of applying foot pressure through the upper surface of the insole body to deform the shape of the supporter according to the user's foot pressure, thereby fixing the upper surface of the insole body to the shape of the user's sole; and a sixth step of attaching a pressure dispersing pad to the pressure concentrating part.

Preferably, the sixth step includes: a 6-1 step of placing the intermediate insole made through the fifth step on a plantar pressure measuring device and allowing the user to stand on the intermediate insole to measure the pressure distribution of the soles; and a 6-2 step of analyzing the sole pressure distribution information obtained through the 6-1 step and attaching the pressure distribution pad suitable for each pressure concentration unit.

Preferably, in the method of manufacturing the personalized insole, after the sixth step, the completed insole is placed on the plantar pressure measuring device, and the user stands on the insole and applies a load to measure the pressure distribution of the sole of the pad again. A seventh step to verify the validity; characterized in that it includes.

Preferably, the method for manufacturing the personalized insole is characterized in that the position of the pressure concentration part can be selected by injecting using the data obtained by measuring the user's foot pressure using a plantar pressure meter in the second step. .

In addition, the present invention is a personalized insole according to the above-described manufacturing methods, wherein one or more support ribs are formed in the pressure concentration portion, and a support groove corresponding to the support rib is formed on one surface of the pressure distribution pad. do.

Preferably, one or more rib grooves are formed in the pressure concentration portion, and a rib protrusion corresponding to the rib groove is formed on one surface of the pressure distribution pad.

Preferably, the pressure dispersing pad is characterized in that it is provided in a plurality of different thickness or hardness.

Preferably, the insole body is made of a combination of the first layer, the second layer, and the third layer sequentially from the bottom, the hardness of the first layer being the largest, the hardness of the third layer being the second largest, It is characterized in that it is configured such that the hardness of the second layer between the first layer and the third layer is the lowest.

Preferably, the insole body is characterized in that the outer covering material is coupled on the third layer, and the outer covering material is made of a merino wool material.

The method for manufacturing a personalized insole according to the present invention and a personalized insole according to this provide comfort to the sole and arch, and through this, individual shoe users can configure the insole in consideration of their foot pressure distribution characteristics, and through this, not only the foot but also the foot It has the effect of providing benefits to the overall body shape.

In addition, the personalized insole according to the present invention can be used by selectively combining various pressure dispersing pads in a partial area where a lot of foot pressure is generated on the lower surface of the supporter, so that the user can wear an insole optimized for himself/herself.

1 is a perspective view of an insole having a buffer action according to the prior art.

2 is a process diagram of a method for manufacturing a personalized insole according to the present invention.

Figure 3 is a perspective view of a personalized insole produced by the manufacturing method of the present invention.

Figure 4 is a perspective view of a personalized insole showing a state in which the pressure distribution pad is separated.

5 is a cross-sectional view of an insole body forming a multi-layer structure.

Hereinafter, a method for manufacturing a personalized insole according to the present invention and a personalized insole according thereto will be described in more detail, with reference to the accompanying drawings. On the other hand, the presented drawings show one embodiment of the technical idea of the present invention.

2 is a process diagram of a method for manufacturing a personalized insole according to the present invention, FIG. 3 is a perspective view of a personalized insole produced by the manufacturing method of the present invention, and FIG. 4 is an individual showing a state in which the pressure distribution pad is separated. It is a perspective view of a customized insole, and FIG. 5 is a cross-sectional view of an insole body having a multi-layered structure.

First, a method of manufacturing a personalized insole will be described with reference to the drawings.

The present invention is a method of manufacturing a personalized insole, which can be made from a first step to a sixth step, and the first step (S10) is to prepare the insole body 10 .

The insole body 10 forms an approximate sole shape and is molded of a material having cushioning and restoring force, such as EVA. As the material for the insole body, well-known materials may be used, and preferably, heat-resistant EVA (E265F) material may be used.

More preferably, the insole body 10 is made of a material having a cushion, and the first layer 11, the second layer 12, and the third layer 13 are formed by combining a multi-layer structure having different hardness from the bottom. do.

For example, the hardness of the first layer 11 is made to be the largest at 35 degrees, the hardness of the third layer 13 is made to be the second largest at 30 degrees, and the hardness of the second layer 12 is configured to be the lowest at 20 degrees. Make sure that the shape maintenance and restoring force are sufficiently generated. The first layer 11, the second layer 12, and the third layer 13 constituting the insole body 10 may use different materials, or may be made of the same material but with different hardness. may be

And on the uppermost surface of the insole body 10, that is, on the third layer 13, a predetermined envelope 14 may be coupled, and a merino wool material may be used as the envelope 14 in addition to known fibers. If you use a wool outer covering material, it not only feels soft to the touch, but it also absorbs moisture well, which helps to keep your feet healthy.

After preparing a suitable insole body 10, the supporter 20 is coupled to the lower surface of the insole body 10 in the second step (S20). The supporter 20 is made of a shape memory polymer (SMP) material and covers the entire lower surface of the insole body 10 .

More preferably, when the supporter 20 is coupled to the lower surface of the insole body 10, it is coupled by an injection method, and a pressure concentration portion 21 having a relatively thin thickness is formed in a plurality of regions. Here, the pressure concentration unit 21 means a plurality of areas in which a lot of foot pressure is locally generated in the sole area when walking on the basis of general people, and the pressure concentration unit 21 also forms a part of the supporter 20, and other The thickness should be relatively thin compared to the area. For example, the basic thickness of the supporter may be 3 mm, and the thickness of the pressure concentration portion may be 1.5 mm.

As shown in FIG. 2 , in the case of ordinary people, when the plantar pressure is measured while walking, the pressure is usually high in five areas, and these places may be selected as the pressure concentration part 21 .

After coupling the supporter 20 to the lower surface of the insole body 10, in the third step (S30), a predetermined heat is applied to the supporter 20 so that the shape of the supporter 20 can be changed when pressure is applied. do. As mentioned, the supporter 20 is bonded to the lower surface of the insole body 10 with shape memory polymer (SMP), and due to the nature of the material, it is heated at 70~90℃ for 30~50 seconds to reduce the pressure distribution. The shape may change accordingly. As a method of applying heat to the supporter 20 , hot air may be applied to the surface of the supporter or put into a chamber to apply heat.

Next, in the fourth step (S40), the supporter 20 is placed on a predetermined molding pad P, and the molding pad P is like a square pad having a predetermined thickness and excellent cushioning and restoring force, and eco-friendly memory foam. You can use something like More specifically, the molding pad is molded using 50K_MDI foaming agent, and its specifications are to be about 600mm in width, 400mm in length, and about 100mm in thickness.

Next, in the fifth step (S50), the shape of the supporter 20 is deformed according to the foot pressure by applying the user's foot pressure through the upper surface of the insole body 10 in a state where the supporter 20 faces the molding pad P. This is to ensure that the insole body 10 and the supporter 20 are fixed in the shape of the user's sole.

That is, since the supporter 20 placed on the molding pad P is in a state in which heat is applied to the extent that it can be deformed, when the user steps on the insole body 10 and climbs up, foot pressure acts downward, and the molding pad P ) is depressed differently by location depending on the shape of the sole and distribution of foot pressure. The supporter 20 is also deformed according to the depression of the molding pad P, and as time passes, the supporter 20 cools and is fixed in a deformed shape, and the insole body 10 connected to the supporter 20 is also the supporter 20 ) is curved in accordance with the deformation.

Then, a sixth step (S60) follows. In the sixth step (S60), the pressure dispersing pad 30 is attached to the pressure concentrating part 21 to complete the insole.

More specifically, the sixth step (S60) is subdivided, and the sixth step (S60) may be divided into a 6-1 step (S60-1) and a 6-2 step (S60-2).

The insole made through the fifth step (S50) is called the middle insole, and in the 6-1 step (S60-1), the middle insole is placed on the plantar pressure gauge (T), and the user stands on the middle insole and Measure the pressure distribution on the sole of the foot.

In the 6-2 step (S60-2), the information of the plantar pressure distribution value measured through the 6-1 step (S60-1) is analyzed and the pad 30 for pressure distribution suitable for each pressure concentration unit 21 . to be attached. That is, a plurality of pressure concentration portions 21 exist, and each of these pressure concentration portions 21 is a portion having a higher pressure than other regions. However, since each of these pressure concentration parts 21 will also have different plantar pressure distribution values, the most suitable pressure distribution pad 30 is attached to each pressure concentration part 21 in consideration of this difference.

For example, as shown in FIG. 2 , in this embodiment, a total of five pressure concentration parts 21 are provided, and a first pressure concentration part 21a, a second pressure concentration part 21b, and a third pressure concentration part 21c are provided. ), the fourth pressure concentration portion 21d, and the fifth pressure concentration portion 21e.

The configuration of the plantar pressure of the pressure concentration part 21 and the corresponding pressure distribution pad 30 is as shown in Table 1 below.

	족저압력치plantar pressure	압력 분산용패드pressure dissipation pad
제1압력집중부1st pressure concentration part	대big	경도값 소hardness value small
제2압력집중부2nd pressure concentration part	중middle	경도값 중of hardness values
제3압력집중부3rd pressure concentration part	소cow	경도값 대hardness value vs.
제4압력집중부4th pressure concentration part	중 middle	경도값 중of hardness values
제5압력집중부5th pressure concentration part	소cow	경도값 대hardness value vs.

In order to distribute the pressure distribution in consideration of the plantar pressure value of each pressure concentration unit 21 as described above, a suitable pressure distribution pad 30 corresponding to each pressure concentration unit 21 is installed in each pressure concentration unit 21 . The pressure distribution pad 30 is provided in various thicknesses and hardnesses and can be used in selective combinations. For example, the pressure distribution pad 30 has a thickness of 1.5 mm, 2.5 mm, and 3.5 mm. It can be composed of 3 types, and in the case of hardness (durometer is product code C-ASKER, measuring pressure needle height 2.54mm, pressure surface width 44mm C1L type), it can be composed of 3 types of 20 degrees, 30 degrees, and 40 degrees.

As such, by using the pressure dispersing pad 30 having various thicknesses and hardness, the user can attach and use the most suitable pressure dispersing pad 30 to the pressure concentrating portion 21 in the most suitable combination for him/her.

Meanwhile, the method for manufacturing a personalized insole according to the present invention may further include a seventh step (S70). Although the personalized insole can be completed in the sixth step (S60), it is intended to improve the completeness of the product by verifying that the personally customized insole is correctly manufactured through the seventh step (S70).

To this end, in the seventh step (S70), the insole completed through the sixth step (S60) is placed again on the plantar pressure gauge, and then the user stands on the insole and applies a load to re-measure the pressure distribution on the sole of the foot, thereby distributing the pressure. To verify the validity of the pad (30).

That is, if the correct pressure distribution pad 30 is attached to each pressure concentration unit 21, the pressure distribution value measured in the seventh step (S70) is more evenly distributed than the pressure distribution value measured in the sixth step (S60). you will be able to check

By selecting the most suitable pressure distribution pad 30 for each pressure concentration unit 21 through repetition of the seventh step (S70), the overall pressure distribution of the insole is distributed to reduce foot fatigue and provide walking comfort. .

More preferably, in the method for manufacturing a personalized insole of the present invention, a plurality of pressures are concentrated by injecting the supporter 20 using the data obtained by measuring the user's foot pressure using the plantar pressure meter T in the second step (S20). It is possible to measure the position of the part 21 more accurately.

In other words, the foot pressure data required in the second step ( S20 ) may be information obtained based on average people's feet, and in some cases, the location of the pressure concentration part using data directly measured by the actual user's foot pressure. is also possible to select.

Hereinafter, a personalized insole manufactured according to the method for manufacturing a personalized insole as described above will be described.

The personalized insole produced through the manufacturing method of the present invention includes an insole body 10 and a supporter 20 coupled to the lower surface of the insole body 10, and the insole body 10 is made of EVA (E265F), etc. It can be made of a material having cushioning and restoring force, and the insole body 10 is made of a combination of the first layer 11, the second layer 12, and the third layer 13 sequentially from the bottom, the first The hardness of the layer 11 is the largest, the hardness of the third layer 13 is the second largest, and the hardness of the second layer 12 between the first layer 11 and the third layer 13 is the highest. It can also be configured to be low.

In addition, the insole body 10 may have an outer sheath 14 coupled to the third layer 13 , and the outer covering 14 may be made of a wool material.

And one or more support ribs 21-1 may be formed in the pressure concentration part 21, and a support groove 31 is formed on one surface of the pad 30 for pressure distribution corresponding to the support ribs 21-1. When the pad 30 for pressure distribution is formed and coupled to the pressure concentration part 21 , the support rib 21-1 is inserted into the support groove 31 to enable more accurate installation.

On the other hand, one or more rib grooves 21-2 are formed in the pressure concentrating portion 21, and a rib projection 32 corresponding to the rib grooves 21-2 is formed on one surface of the pressure distribution pad 30. By fitting the rib protrusion 32 into the rib groove 21-2, the pressure dispersing pad 30 can be coupled to the pressure concentrating portion 21.

As such, the support ribs 21-1 or the rib grooves 21-2 are provided in the pressure concentrating portion 21, and the support grooves 31 or the rib protrusions 32 are placed in the pressure dispersing pad 30 to mutually support each other. By fitting while being coupled, the pad 30 for pressure distribution can be installed accurately, and the pressure distribution effect in the supporter 20 can be enhanced.

In addition, if the rib groove 21-2 is placed on the pressure concentration part 21, it can move more flexibly, and there is an additional effect that it can provide comfort when walking.

In addition, the pressure dispersing pad 30 coupled to the pressure concentrating portion 21 may be provided in a plurality of different thicknesses or hardness so that the user can use it while selecting or replacing a suitable pressure dispersing pad for himself/herself.

In other words, the pressure distribution pad 30 is provided in various thicknesses and hardnesses and can be used in selective combinations, for example, the thickness of the pressure distribution pad 30 is 1.5mm, 2.5mm, and 3.5mm. In case of hardness (durometer is product code C-ASKER, measuring pressure needle height 2.54mm, pressure surface width 44mm C1L type), it can be composed of three types: 20 degrees, 30 degrees, and 40 degrees.

For example, a pressure distribution pad 30 having a thickness of 1.5mm and a hardness of 30 degrees may be attached to the first pressure concentration portion, and a pressure distribution pad 30 having a thickness of 3.5mm and a hardness of 20 degrees may be attached to the second pressure concentration portion. can be attached.

In addition, the pad for pressure distribution may be composed of a combination of different materials, and even the same material may be provided in several different thicknesses or have different hardness.

As described above, the method for manufacturing the personalized insole of the present invention and the personalized insole according to the present invention measure the actual foot pressure of the user and combine the pad for pressure distribution at the optimal position to more evenly distribute the foot pressure acting on the sole of the foot, thereby improving walking quality. It has the advantage of being able to help the shape of the foot and overall body as well as comfort.

The present invention can be used as a functional insole that can create high added value.

Claims

A first step of preparing an insole body molded from a material having cushioning and restoring force, such as EVA;

A supporter made of a shape memory polymer (SMP) material is coupled to cover the lower surface of the insole body, and a plurality of areas in which a lot of local foot pressure is generated during walking are injected such that a pressure concentration portion having a relatively thin thickness is formed. a second step of allowing them to be combined;

a third step of applying a predetermined heat to the supporter so that the shape can be changed when pressure is applied;

a fourth step of placing the supporter on a predetermined molding pad;

a fifth step of applying foot pressure through the upper surface of the insole body to deform the shape of the supporter according to the user's foot pressure, thereby fixing the upper surface of the insole body to the shape of the user's sole;

A method of manufacturing a personalized insole comprising; a sixth step of attaching a pressure dispersing pad to the pressure concentrating part.
The method of claim 1,

The sixth step is

Step 6-1, placing the intermediate insole made in the fifth step on the plantar pressure gauge and allowing the user to stand on the middle insole to measure the pressure distribution on the soles of the feet;

Step 6-2 of analyzing the pressure distribution information on the soles obtained through step 6-1 to attach the pressure distribution pad suitable for each pressure concentration unit; manufacturing method.
3. The method of claim 2,

The manufacturing method of the personalized insole is,

A seventh step of verifying the effectiveness of the pad for pressure distribution by placing the completed insole on the plantar pressure gauge after the sixth step, and re-measuring the pressure distribution of the sole by the user standing on the insole and applying a load; includes; A method of manufacturing a personalized insole, characterized in that.
The method of claim 1,

The manufacturing method of the personalized insole is,

The method of manufacturing a personalized insole, characterized in that the position of the pressure concentration part can be selected by injection using the data measured by the user's foot pressure using a plantar pressure measuring device in the second step.
A personalized insole manufactured by the manufacturing method according to any one of claims 1 to 4.
6. The method of claim 5,

One or more support ribs are formed in the pressure concentration portion, and a support groove corresponding to the support rib is formed on one surface of the pressure distribution pad.
6. The method of claim 5,

One or more rib grooves are formed in the pressure concentration portion, and rib projections corresponding to the rib grooves are formed on one surface of the pressure distribution pad.
6. The method of claim 5,

The pressure distribution pad is a personalized insole, characterized in that provided in a plurality of different thickness or hardness.
6. The method of claim 5,

The insole body,

Doedoe consisting of a combination of the first layer, the second layer, and the third layer sequentially from the bottom,

The personalized insole, characterized in that it is configured such that the hardness of the first layer is the greatest, the hardness of the third layer is the second highest, and the hardness of the second layer between the first layer and the third layer is the lowest.
10. The method of claim 9,

The insole body,

An outer covering material is coupled on the third layer, wherein the outer covering material is made of a merino wool material.