KR102185683B1 - Manufacturing method of personalized insoles and personalized insoles thereof - Google Patents

Abstract

The present invention relates to an insole for footwear, and more particularly, to a method of manufacturing a personalized insole, which is optimized for body characteristics of a user, such as walking habit of the user. The method of manufacturing the personalized insole includes: a first step of preparing an insole body molded from a material having a cushion and a restoring force, such as EVA; a second step of coupling a supporter formed of a shape memory polymer (SMP) material to cover a bottom surface of the insole body, in which injection-coupling is performed such that a plurality of regions where a high local foot pressure is generated during walking includes a pressure concentration part having a relatively thin thickness; a third step of applying predetermined heat to the supporter so that a shape of the supporter is able to be changed when a pressure is applied; a fourth step of placing the supporter on a predetermined molding pad; a fifth step of applying a foot pressure through a top surface of the insole body so that the shape of the supporter is deformed according to the foot pressure of the user, thereby fixing the top surface of the insole body in a shape of a sole of the user; and a sixth step of attaching a pressure distribution pad to the pressure concentration part.

Description

Manufacturing method of personalized insoles and personalized insoles {Manufacturing method of personalized insoles and personalized insoles thereof}

The present invention relates to an insole for shoes, in particular, a method for manufacturing a personalized insole optimized for a user's physical characteristics such as his or her walking habit, and a technology related to a personalized insole accordingly.

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

There are various types of shoes, and shoes such as the most common sneakers are composed of upper, insole, midsole, and outsole.

The insole is seated in the inner space surrounded by the upper, and becomes a part where the sole of the foot comes into direct contact when the user wears the shoe. In an effort to improve the fit and have a beneficial effect on the feet and human body, studies on insoles are being actively conducted. In addition, modern people who wear shoes and live all day have a lot of foot diseases such as athlete's foot due to poor ventilation. Because of the large and small impacts acting on the soles of the feet due to long walking, feet, ankles, knees, and lower back hurt. There are many cases where it is difficult to do, and if it is severe, it may cause a change of body shape and have great difficulty in walking.

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

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

1 is a perspective view of an insole having a buffering action according to the prior art, and as shown in the prior art, in the insole formed by attaching a fabric to a bottom plate made of synthetic resin, the heel portion 112 of the bottom 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 contracting and restoring according to the load applied when walking, the buffer member 10 114) has a plurality of first elastic protrusions 12 formed to protrude in the downward direction, and a plurality of wrinkles 13 that are contracted and restored in the vertical direction around the side surface of the first elastic protrusion 12 are formed. It is characterized by that.

However, shoes that are usually mass-produced industrially 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.

Korean Patent Registration No. 10-0758023

Therefore, in the present invention, the insole is manufactured by measuring the user's individual foot pressure so that the user can walk more comfortable and stable, and the manufacture of a personalized insole that allows the pressure distribution pad to be attached to the area where the foot pressure occurs. We would like to provide methods and personalized guidance.

The method of manufacturing a personalized insole of the present invention for achieving the task as presented is a first step of preparing an insole body formed of a material having a cushion and resilience, such as EVA; A supporter made of a shape memory polymer (SMP) material is combined to cover the lower surface of the insole body, but the plurality of areas where local foot pressure is generated when walking are injected so that a relatively thin pressure concentration is formed. A second step of being combined; A third step of applying predetermined heat to the supporter so that the shape can be changed under pressure; A fourth step of placing the supporter on a predetermined molding pad; A fifth step of causing the shape of the supporter to be deformed according to the user's foot pressure by applying foot pressure through the upper surface of the insole body so that the upper surface of the insole body is fixed in the shape of the user's sole; And a sixth step of attaching a pressure dispersion pad to the pressure concentrator.

Preferably, the sixth step comprises: a 6-1 step of placing the middle insole made through the fifth step on a plantar pressure meter and allowing the user to stand on the middle insole to measure the pressure distribution of the soles of the foot; It characterized in that it comprises a; step 6-2 of analyzing the foot pressure distribution information obtained through the step 6-1 to attach the pressure distribution pad suitable for each of the pressure concentration units.

Preferably, the method of manufacturing the personalized insole includes placing the completed insole on the plantar pressure measuring device after the sixth step, and a user standing on the insole and applying a load to re-measure the sole pressure distribution of the pressure distribution pad. And a seventh step of verifying the validity.

Preferably, the method of manufacturing the personalized insole is characterized in that the position of the pressure concentrator can be selected by ejecting using data obtained by measuring the user's foot pressure using a plantar pressure measuring device in the second step. .

In addition, the present invention is a personalized insole according to the above-described manufacturing methods, characterized in that at least one support rib is formed in the pressure concentrator, 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 concentrating portion, and rib protrusions corresponding to the rib grooves are formed on one surface of the pressure distribution pad.

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

Preferably, the insole body is composed of a combination of the first layer, the second layer, and the third layer sequentially from the bottom, the hardness of the first layer is the largest, the hardness of the third layer is the second, the second It is characterized in that the hardness of the second layer between the first layer and the third layer is configured to be the lowest.

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

The method of manufacturing a personalized insole according to the present invention and the personalized insole according to the present invention provide comfort to the soles and arches of the soles of the feet and arches as individual shoe users can configure the insoles in consideration of the characteristics of their foot pressure distribution. It has the effect of providing benefits to the overall body shape.

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

1 is a perspective view of an insole having a buffering action according to the prior art.
Figure 2 is a process diagram for a method of 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 insol body forming a multi-layered structure.

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

Figure 2 is a process chart for the manufacturing method of the personalized insole according to the present invention, Figure 3 is a perspective view of the personalized insole produced by the manufacturing method of the present invention, Figure 4 is a personal showing a state in which the pressure dispersing pad is separated It is a perspective view of a customized insole, and FIG. 5 shows a cross-sectional view of an insol body constituting a multilayer 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 has an approximate shape of the sole of the foot and is formed of a material having cushioning and resilience, such as EVA. As the material for the insole body, known materials may be used, and heat-resistant EVA (E265F) material may be used.

More preferably, the insole body 10 is made of a material having a cushion, but from the bottom to the first layer 11, the second layer 12, and the third layer 13, it is made of a combination of a multilayer structure having different hardness. do.

For example, the first layer 11 has the greatest hardness of 35 degrees, the third layer 13 has the highest hardness of 30 degrees, and the second layer 12 has the lowest hardness of 20 degrees. Make sure that there is sufficient shape retention and resilience. The first layer 11, the second layer 12, and the third layer 13 constituting the insole body 10 may be made of different materials, or be made of the same material but have different hardness. May be.

In addition, a predetermined sheath material 14 may be bonded on the top surface of the insole body 10, that is, the third layer 13, and a merino wool material may be used as the sheath material 14 in addition to known fibers. If you use a wool-based skin material, it is not only soft to the touch, but also absorbs moisture well, which can help your feet health.

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 lower surface of the insole body 10 as a whole.

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 concentrating portion 21 having a relatively thin thickness is formed in a plurality of regions. Here, the pressure concentrating unit 21 refers to a plurality of areas in which a lot of local foot pressure is generated in the sole area when walking based on general people, and the pressure concentrating unit 21 also constitutes a part of the supporter 20. Make the thickness relatively thin compared to the area. For example, the basic thickness of the supporter can be 3mm, and the thickness of the pressure concentration section can be 1.5mm.

In the case of ordinary people as shown in Figure 2, when measuring the plantar pressure during walking, the pressure is usually high in five areas, and these places may be selected as the pressure concentration unit 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 under pressure. do. As mentioned, the supporter 20 is bonded to the lower surface of the insole body 10 with a shape memory polymer (SMP), and due to the nature of the material, the pressure distribution is affected by heating at 70 to 90°C for about 30 to 50 seconds. The shape can be changed accordingly. As a method of applying heat to the supporter 20, hot air may be applied to the surface of the supporter or may be put into a chamber to actuate heat.

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

Next, in the fifth step (S50), the shape of the supporter 20 is deformed according to the foot pressure by acting the user's foot pressure through the upper surface of the insole body 10 while the supporter 20 faces the molding pad P. In this way, the insole body 10 and the supporter 20 are fixed in the shape of the user's sole.

That is, the supporter 20 on the molding pad (P) is in a state that heat is applied to the extent that it can be deformed, so when the user steps on the insole body (10) and stepping on it, the foot pressure acts downward, and the molding pad (P ) Is depressed differently for each location depending on the shape of the sole and the distribution of foot pressure. The supporter 20 is also deformed according to the depression of the forming pad P, and as time passes, the supporter 20 is fixed in a deformed shape as it cools, and the insol body 10 connected to the supporter 20 is also the supporter 20 ) Is changed to be curved corresponding to the deformation.

Subsequently, a sixth step (S60) follows. In the sixth step (S60), a pressure dispersing pad 30 is attached to the pressure concentrating unit 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 foot pressure distribution.

In step 6-2 (S60-2), the pressure distribution pad 30 suitable for each pressure concentrator 21 by analyzing the information of the plantar pressure distribution value measured through the 6-1 step (S60-1). Make sure to attach. That is, there are a plurality of pressure concentrating units 21, and each of these pressure concentrating units 21 is a portion in which pressure is formed higher than that of other regions. However, since each of these pressure concentrating units 21 will have different plantar pressure distribution values, it is intended to attach the most suitable pressure distribution pad 30 to each pressure concentrating unit 21 in consideration of this difference.

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

The configuration of the plantar pressure of the pressure concentrator 21 and the pressure distribution pad 30 corresponding thereto are as shown in Table 1 below.

Plantar pressure Pressure dispersing pad 1st pressure concentration part versus Hardness value small 2nd pressure concentration part medium Among the hardness values 3rd pressure concentration part small Hardness vs. 4th pressure concentration unit medium Among the hardness values 5th pressure concentration unit small Hardness vs.

In this way, a suitable pressure dispersing pad 30 corresponding to each pressure concentrating unit 21 is attached to each pressure concentrating unit 21 so that the pressure distribution can be dispersed in consideration of the plantar pressure values of each of the respective pressure concentrating units 21. It is to attach.

The pressure dispersing pad 30 is provided in various thicknesses and hardnesses and can be used in an optional combination.For example, the thickness of the pressure dispersing pad 30 may be composed of three types of 1.5mm, 2.5mm, and 3.5mm. In the case of hardness (the hardness tester is a product code C-ASKER, a measuring pressure needle height of 2.54 mm, a pressure surface width of 44 mm, a C1L type), it can be composed of three types: 20 degrees, 30 degrees, and 40 degrees.

By using the pressure dispersing pad 30 having various thicknesses and hardness as described above, the user can attach and use the most suitable pressure dispersing pad 30 to the pressure concentrating unit 21 in the most suitable combination for them.

On the other hand, the method of 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 increase the completeness of the product by verifying whether the personalized insole has been correctly manufactured through the seventh step (S70).

To this end, in the 7th step (S70), the insole completed through the 6th step (S60) is placed on the plantar pressure gauge again, and then the user stands on the insole and applies a load to re-measure the sole pressure distribution, thereby distributing the pressure. The validity of the pad 30 is verified.

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

By repeating the seventh step (S70), the most suitable pressure distribution pad 30 is selected for each pressure concentrating unit 21, thereby distributing the overall pressure distribution of the insole to reduce foot fatigue and provide comfort for walking. .

More preferably, the method of manufacturing a personalized insole of the present invention concentrates a plurality of pressures by ejecting the supporter 20 using data obtained by measuring the user's foot pressure using a plantar pressure measuring device (T) in the second step (S20). The position of the part 21 can be more accurately measured.

In other words, the foot pressure data required in the second step (S20) may be information obtained based on the foot of an average general person, and in some cases, the location of the pressure concentration unit using the data directly measured the foot pressure of the actual user. It is also possible to select.

Hereinafter, a personalized insole manufactured according to the method of 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 includes EVA (E265F), etc. It can be made of a material having cushioning and resilience, and the insole body 10 is formed by combining the first layer 11, the second layer 12, and the third layer 13 sequentially from the bottom, and the first The hardness of the layer 11 is the largest, the hardness of the third layer 13 is the second, 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, the outer shell material 14 is coupled to the third layer 13, the outer shell material 14 may be made of a wool material.

In addition, one or more support ribs 21-1 may be formed in the pressure concentrating part 21, and a support groove 31 is formed on one surface of the pressure distribution pad 30 corresponding to the support rib 21-1. When the pressure distribution pad 30 is coupled to the pressure concentrating part 21 by being formed, the support rib 21-1 is fitted in the support groove 31 so that more accurate installation is possible.

On the other hand, one or more rib grooves (21-2) are formed in the pressure concentrating portion (21), and a rib protrusion (32) corresponding to the rib groove (21-2) is formed on one surface of the pressure distribution pad (30) So that the rib protrusion 32 is fitted into the rib groove 21-2 so that the pressure dispersing pad 30 can be coupled to the pressure concentrating part 21.

In this way, a support rib (21-1) or a rib groove (21-2) is placed in the pressure concentrating part (21), and a support groove (31) or a rib protrusion (32) is placed in the pressure dispersing pad (30). By being fitted and coupled, the pressure dispersing pad 30 can be accurately installed, and the pressure dispersing effect in the supporter 20 can be increased.

In addition, if the rib groove (21-2) is placed in the pressure concentrating part (21), there is also a side effect that it can move more flexibly, thereby providing comfort during walking.

In addition, the pressure dispersing pad 30 coupled to the pressure concentrating unit 21 may be provided in a plurality of different thicknesses or hardnesses so that the user can select or replace the pressure dispersing pad suitable for the user.

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

By using the pressure dispersing pad 30 having various thicknesses and hardness as described above, the user can attach and use the most suitable pressure dispersing pad 30 to the pressure concentrating unit 21 in the most suitable combination for them.

For example, a pressure dispersing pad 30 having a thickness of 1.5 mm and a hardness of 30 degrees may be attached to the first pressure concentrating part, and a pressure dispersing pad 30 having a thickness of 3.5 mm and a hardness of 20 degrees may be attached to the second pressure concentrating part. Can be attached.

In addition, the pressure dispersion pad may be formed by combining different materials, and even the same material may be provided in several different thicknesses or different hardnesses.

As described above, the method of manufacturing a personalized insole according to the present invention and the personalized insole according to the method of the present invention measure the actual foot pressure of the user and combine the pressure dispersing pad at the optimal position to more evenly distribute the foot pressure acting on the sole of the foot. It has the advantage of being able to help with comfort as well as the shape of the feet and the body as a whole.

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

First step: S10 Second step: S20
Step 3: S30 Step 4: S40
Step 5: S50 Step 6: S60
Step 6-1: S60-1 Step 6-2: S60-2
Step 7: S70
10: insole body
11: first floor 12: second floor
13: layer 14: shell material
20: supporter 21: pressure concentration unit
21-1: support rib 21-2: rib groove
21a: first pressure concentrating part 21b: second pressure concentrating part
21c: third pressure concentration unit 21d: fourth pressure concentration unit
21e: 5th pressure concentration unit
30: pressure dispersion pad
31: support groove 32: rib protrusion
P: Molding pad
T: Plantar pressure meter

Claims (10)

A first step of preparing an insole body molded of a material having a cushion and resilience, such as EVA;
A supporter made of a shape memory polymer (SMP) material is combined to cover the lower surface of the insole body, but the plurality of areas where local foot pressure is generated when walking are injected so that a relatively thin pressure concentration is formed. A second step of being combined;
A third step of applying a predetermined heat to the supporter so that the shape can be changed under pressure;
A fourth step of placing the supporter on a predetermined molding pad;
A fifth step of causing the shape of the supporter to be deformed according to the user's foot pressure by applying foot pressure through the upper surface of the insole body so that the upper surface of the insole body is fixed in the shape of the user's sole;
Including; a sixth step of attaching a pressure dispersion pad to the pressure concentrating part,
The sixth step,
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 rise above the intermediate insole to measure the sole pressure distribution;
Step 6-2 of analyzing the sole pressure distribution information obtained through the step 6-1 to attach the pressure distribution pad suitable for each pressure concentrating unit;
A seventh step of placing the completed insole on the plantar pressure measuring device after the sixth step, and allowing the user to stand on the insole and apply a load to re-measure the sole pressure distribution to verify the effectiveness of the pressure distribution pad; Method of manufacturing a personalized insole, characterized in that to. delete delete A first step of preparing an insole body molded of a material having a cushion and resilience, such as EVA;
A supporter made of a shape memory polymer (SMP) material is combined to cover the lower surface of the insole body, but the plurality of areas where local foot pressure is generated when walking are injected so that a relatively thin pressure concentration is formed. A second step of being combined;
A third step of applying a predetermined heat to the supporter so that the shape can be changed under pressure;
A fourth step of placing the supporter on a predetermined molding pad;
A fifth step of causing the shape of the supporter to be deformed according to the user's foot pressure by applying foot pressure through the upper surface of the insole body so that the upper surface of the insole body is fixed in the shape of the user's sole;
Including; a sixth step of attaching a pressure dispersion pad to the pressure concentrating part,
The method of manufacturing a personalized insole, characterized in that the position of the pressure concentrating part can be selected by ejecting using data obtained by measuring 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 claim 1 or 4. The method of claim 5,
At least one support rib is formed in the pressure concentrating portion, and a support groove corresponding to the support rib is formed on one surface of the pressure distribution pad. The method of claim 5,
One or more rib grooves are formed in the pressure concentrating part, and a rib protrusion corresponding to the rib groove is formed on one surface of the pressure distribution pad. The method of claim 6,
The pressure dispersion pad is a personalized insole, characterized in that provided in a plurality of different thickness or hardness. The method of claim 5,
The insole body,
It consists of a combination of the first layer, the second layer, and the third layer sequentially from the bottom,
Personalized insole, characterized in that the first layer has the highest hardness, the third layer has the second highest hardness, and the second layer between the first layer and the third layer has the lowest hardness. The method of claim 9,
The insole body,
Personalized insole, characterized in that the outer skin material is combined on the third layer, the outer skin material is made of a merino wool material.

Images