US20220039517A1

US20220039517A1 - Hybrid insole with multi-shock absorbing pad and method for fabricating thereof

Info

Publication number: US20220039517A1
Application number: US17/393,995
Authority: US
Inventors: Joon Han KANG; Dong Ho SONG; Jung Ok PARK; Oak Jin PARK; Eun Ju Jang; Sang Ho Lee
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-04
Filing date: 2021-08-04
Publication date: 2022-02-10
Also published as: KR102385195B1; KR20220017294A

Abstract

Provided are a hybrid insole with a multi-shock absorbing pad and a method for fabricating the hybrid insole. The hybrid insole includes an insole body including at least one sheet layer that is formed of an elastic material and has a shape of a human sole; a first absorbing pad means including first to fourth absorbing pad portions attached to the insole body corresponding to a metatarsal region, a tarsal bone region, and a calcaneus region of the human foot, and first to third connecting portions selectively connecting the first to fourth absorbing pad portions; and a second absorbing pad means including a fifth absorbing pad portion attached to the insole body corresponding to the metatarsal region and a phalange region of the human foot.

The hybrid insole is configured such that absorbing pads of different structures are disposed to correspond to the bone structure for each region of the foot and the shape of an arch, thus distributing and absorbing the weight load of the human body.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the priority of the Korean Patent Applications NO 10-2020-0097598 filed on Aug. 4, 2020, in the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference.

BACKGROUND OF THE DISCLOSURE

Field of the Disclosure

The present disclosure relates to a functional insole and, more particularly, to a hybrid insole with a multi-shock absorbing pad and a method for fabricating the hybrid insole, in which an absorbing pad corresponding to a bone structure for each region of a human foot is disposed to distribute and absorb the weight load of a human body.

Related Art

Generally, an insole may be provided not in a sole of a shoe but in a shoe, a sports shoe, etc., and may function to absorb shock transmitted from the ground while being in direct contact with the entire sole of the foot and to smoothly cope with a change in terrain.
The shoe sole is non-replaceably fixed under an upper as a component forming the shoe, whereas the insole or liner is replaceably positioned inside the upper to provide a shock absorbing function, and is in direct contact with the sole of the foot to perform various functions such as a balance control function as well as the shock absorbing function.
When walking or jogging, a weight load that is about 1.2 to 8 times a person's weight is continuously applied to the waist, knee, and ankle. The cartilage between joints and the arch of the sole perform a shock absorbing function to absorb the weight load and to prevent damage to the joints and bones.
The cartilage and the arch of the sole absorb and distribute shocks transmitted to a human body when the foot lands on the ground, and form a rebound elastics state immediately when the foot comes off from the ground. As such, the cartilage and the arch of the sole repeat the operation of absorbing and distributing shocks transmitted to the human body in everyday life.
Therefore, the cartilage and the arch of the sole playing a more important role than other organs of the human body should be continuously cared to be used well for a long time. The protection of the cartilage and the arch of the sole greatly depends on how well the foot directly receiving the weight load of the human body distributes and absorbs shocks caused by the weight load.
The foot is composed of 26 bones of various sizes, and these bones are supported by ligaments and muscles. Furthermore, the bones constituting the foot have several dome-shaped arch structures to properly distribute and absorb the weight load of the human body.
However, modern people continuously apply shocks to the feet due to weight gain caused by obesity, living on hard concrete floors or asphalt, or poor postures. Thereby, the dome-shaped arches of the feet that support and distribute the weight load are deformed over time. The deformation of the dome-shaped arches breaks the balance of the articular cartilages of the body, thus causing a problem in which the weight load is not properly absorbed or distributed.
As such, if the foot does not properly support the weight load of the human body, this causes foot diseases such as plantar fasciitis, and continuously accumulates fatigue in the cartilage of the knee joint, thus causing knee arthritis due to cartilage wear.
In particular, Korean Patent No. 10-0675816 has proposed an invention equipped with an air band in which an air bag, capable of correcting the height of an arch by tightening at a point where the medial and lateral arches of the foot are connected, is installed. However, this is insignificant in the effect of protecting the entire sole.
Furthermore, the above-described invention is problematic in that this does not take into account the fact that the weight load applied to each region of the foot contacting the ground over time when a person is walking or jogging is different, so that this cannot completely prevent the deformation of the dome-shaped arch of the foot.

DOCUMENTS OF RELATED ART

(Patent Document 1) KR 10-0675816

SUMMARY

The present disclosure provides a hybrid insole with a multi-shock absorbing pad and a method for fabricating the hybrid insole, in which absorbing pads of different structures are disposed to correspond to the bone structure for each region of the foot and the shape of an arch, thus distributing and absorbing the weight load of the human body.
The present disclosure also provides a hybrid insole with a multi-shock absorbing pad and a method for fabricating the hybrid insole, in which a solid absorbing pad having an excellent elastic force is disposed in a region corresponding to a phalange region of a human foot, and absorbing pads in which liquid gel having elastic force and fluidity is injected are disposed in regions corresponding to the metatarsal region, tarsal bone region, and calcaneus region of the human foot to perform absorbing, distributing, and balancing operations in response to a change in the weight load applied to the foot.
Furthermore, the present disclosure provides a hybrid insole with a multi-shock absorbing pad and a method for fabricating the hybrid insole, in which a plurality of absorbing pads in which liquid gel having elastic force and fluidity is injected are connected to each other, thus absorbing and distributing shocks through the flow of the liquid gel in response to a change in weight load applied to each region of the sole when walking or jogging.
Furthermore, the present disclosure provides a hybrid insole with a multi-shock absorbing pad and a method for fabricating the hybrid insole, in which a phalange region uses a solid absorbing pad depending on the structure of bones constituting the human foot and the shape of an arch, and a metatarsal region, a tarsal bone region, and a calcaneus region where a force applied by a weight load is large and varied use a plurality of absorbing pads having a fluid liquid gel, thus lessening the weight load applied to the human foot and preventing the deformation of the foot.
Furthermore, the present disclosure provides a hybrid insole and a method for fabricating the hybrid insole, in which a liquid gel having elastic force and fluidity, first buffer particles made of silica-base material, and second buffer particles composed of carbon nanoparticles are mixed and provided in absorbing pads attached to an insole body, thus absorbing and distributing the weight load of the human body transmitted to the foot.
In an aspect, a hybrid insole may include an insole body including at least one sheet layer that is formed of an elastic material and has a shape of a human sole; a first absorbing pad means including first to fourth absorbing pad portions attached to the insole body corresponding to a metatarsal region, a tarsal bone region, and a calcaneus region of the human foot, and first to third connecting portions selectively connecting the first to fourth absorbing pad portions; and a second absorbing pad means including a fifth absorbing pad portion attached to the insole body corresponding to the metatarsal region and a phalange region of the human foot.
Each of the first to fifth absorbing pad portions may include an absorption tube having an internal space; a fluid liquid gel injected into the internal space of the absorption tube; a first buffer particle mixed with the liquid gel and formed of a silica-based material; and a second buffer particle mixed with the liquid gel and formed of a carbon nanoparticle, the first absorbing pad portion may be attached to the insole body corresponding to the metatarsal region of the human foot, the second and third absorbing pad portions may be attached to the insole body at a position corresponding to a region between the metatarsal region and the calcaneus region of the human foot, and the fourth absorbing pad portion may be attached to the insole body corresponding to the calcaneus region of the human foot.
The first to third connecting portions may be disposed, respectively, between the first and second absorbing pad portions, between the third and fourth absorbing pad portions, and between the second and fourth absorbing pad portions, so that the liquid gel may move between the first to fourth absorbing pad portions to absorb and distribute a weight load of a human body. A thickness of the second absorbing pad portion may be sequentially decreased in a direction from a medial region to a lateral region of the insole body, and a thickness of the third absorbing pad portion may be sequentially decreased in a direction from the lateral region to the medial region of the insole body. An absorption tube forming the first to fifth absorbing pad portions may be an elliptical silicone material having an elastic force.
Further, first and second dispersions of different materials may be mixed with the liquid gel disposed in each of the first to fifth absorbing pad portions to disperse the first and second buffer particles. Each of the first to third connecting portions may include an injection port to inject the liquid gel. A plurality of first spacers integrated with the absorption tube and having a first height and a plurality of second spacers integrated with the absorption tube and having a second height smaller than the first height may be formed on an upper surface or a lower surface in the absorption tube disposed in each of the first to fifth absorbing pad portions.
Furthermore, a plurality of spacers integrated with the absorption tube may be formed on an upper surface or a lower surface in the absorption tube disposed in each of the first to fifth absorbing pad portions, and spacers formed on the first to fourth absorbing pad portions among the plurality of spacers may be sequentially decreased in height in a direction from the fourth absorbing pad portion to the first absorbing pad portion. The first buffer particle may be a fumed type silica particle having a bimodal particle distribution. The first buffer particle may be mixed in an amount of 10 to 30% by weight on the basis of a total weight of the liquid gel.
Further, the second buffer particle may be composed of a carbon nanoparticle. The second buffer particle may be mixed in an amount of 5 to 15% by weight on the basis of a total weight of the liquid gel.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a diagram showing the appearance of a human foot positioned to correspond to a hybrid insole of the present disclosure.

FIG. 2 is a plan view showing the structure of the hybrid insole according to the present disclosure.

FIG. 3 is a sectional view taken along line I-I′ of FIG. 2.

FIG. 4 is a sectional view taken along line II-II′ of FIG. 2.

FIGS. 5A and 5B are sectional views taken along line III-III′ and line A-A′ of FIG. 2.

FIGS. 6A and 6B are sectional views taken along line IV-IV′ and line B-B′ of FIG. 2.

FIG. 7 is a sectional view taken along line V-V′ of FIG. 2.

FIG. 8A, FIG. 8B, FIG. 8C and FIG. 8D are diagrams showing a state in which first and second absorbing pad means disposed in the hybrid insole of the present disclosure support a human foot.

FIG. 9A, FIG. 9B and FIG. 9C are diagrams showing a state in which the absorbing pad means disposed in the hybrid insole of the present disclosure absorb or distribute shock depending on the weight load of a human body.

FIG. 10, FIG. 11 and FIG. 12 are diagrams showing embodiments of first and second spacers formed in absorbing pad portions of the hybrid insole of the present disclosure.

FIG. 13 is a diagram showing the flow of liquid gel when the first and second spacers are formed in the absorbing pad portions of the hybrid insole of the present disclosure.

FIG. 14 is a diagram showing a state in which the number of the first and second spacers formed depending on the position of the absorbing pad portions is varied to absorb and distribute the weight load of the human body, according to another embodiment of the present disclosure.

FIG. 15 and FIG. 16 are diagrams showing a state in which liquid gel mixing with first and second buffer particles is injected into the absorbing pad portion attached to the hybrid insole, according to another embodiment of the present disclosure.

FIG. 17 is a flowchart showing a method of fabricating a hybrid insole according to an embodiment of the present disclosure.

DESCRIPTION OF EXEMPLARY EMBODIMENTS

Reference will not be made in detail to various embodiments of the present disclosure, specific examples of which are illustrated in the accompanying drawings and described below, since the embodiments of the present disclosure can be variously modified in many different forms. Effects and features of the present disclosure and a method of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the drawings. However, it is to be understood that the present description is not intended to limit the present disclosure to those exemplary embodiments. It will be understood that the terms “first”, “second”, etc. are only used to distinguish one element from another element. In the present disclosure, the singular forms are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprise”, “include”, “have”, etc. when used in this specification, specify the presence of stated features or components described herein but do not preclude the presence or addition of one or more other features or components. Furthermore, the size or shape of components shown in the drawings may be exaggerated for the convenience of description. For example, since the size and thickness of each component shown in the drawings are arbitrarily indicated for the convenience of description, the present disclosure is not necessarily limited to the drawings.
Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. In this regard, the same or corresponding components are denoted by the same reference numerals, and a duplicated description thereof will be omitted.
FIG. 1 is a diagram showing the appearance of a human foot positioned to correspond to a hybrid insole of the present disclosure. FIG. 2 is a plan view showing the structure of the hybrid insole according to the present disclosure. FIG. 3 is a sectional view taken along line I-I′ of FIG. 2. FIG. 4 is a sectional view taken along line II-II′ of FIG. 2. FIGS. 5A and 5B are sectional views taken along line III-III′ and line A-A′ of FIG. 2. FIGS. 6A and 6B are sectional views taken along line IV-IV′ and line B-B′ of FIG. 2. FIG. 7 is a sectional view taken along line V-V′ of FIG. 2.
Referring to FIGS. 1 to 7, the present disclosure relates to a hybrid insole 100 that absorbs and distributes a weight load applied through the sole of a human foot 300.
The hybrid insole 100 has a shape corresponding to that of the human sole, and includes an insole body 110 formed of an elastic material, and first and second absorbing pad means 180 and 190 disposed in the insole body 110.
Although not shown in the drawings, the insole body 110 may be composed of at least one sheet layer. Each of the sheet layers forming the insole body 110 may be made of an elastic material having absorbency, heat-blocking properties, lightness, anti-inflammatory, anti-viral, anti-microbial, and anti-bacterial properties.
For example, the insole body may be formed of a sheet layer of kenaf or a mixture of kenaf and rubber. Further, at least one of layers forming the insole body 110 may be formed of any one of resin-based materials such as nylon, PP (polypropylene), PE (polyethylene), or EVA (ethylene-vinyl acetate).
In case that the sheet layer constituting the insole body 110 is formed of a resin-based material, this may provide strength, durability, adhesion, and cushioning to support a weight load required for the insole in a process of fabricating the sheet layer.
First and second absorption pad means 180 and 190 disposed in the hybrid insole 100 of the present disclosure may be disposed in either of an upper surface or a rear surface, i.e., a surface of the sheet layer, when the insole body 110 is a single sheet layer.
Furthermore, when the insole body 110 of the hybrid insole 100 of the present disclosure is formed of a plurality of sheet layers, the first and second absorption pad means 180 and 190 may be disposed between the sheet layers or be disposed in an upper surface of an uppermost sheet layer or a rear surface of a lowermost sheet layer of the plurality of sheet layers.
Therefore, herein, for the convenience of description, the insole body 110 of a single sheet layer will be mainly described, and the insole body of a plurality of sheet layers will be subsidiarily described. Furthermore, it will not be distinguished whether a region in which the first and second absorption pad means 180 and 190 are disposed is the upper surface or the lower surface of the insole body 110.
As described above, the first and second absorption pad means 180 and 190 disposed in the hybrid insole 100 of the present disclosure may be disposed in the upper surface or the lower surface of a single sheet layer forming the insole body 110.
Furthermore, when the first and second absorption pad means 180 and 190 are disposed in (attached to) the insole body 110 and are disposed between the sheet layers, the sheet layer disposed in an upper side may cover the first and second absorption pad means 180 and 190. However, in some cases, the upper sheet layer may be compressed while the region corresponding to the absorption pad means is opened.
First, the structure of the human foot will be described as follows.
The human foot is mainly divided into tarsal bones, metatarsals, and phalanges.
To be more specific, the tarsal bones include a calcaneus region F5, a talus, cuneiform, navicula, and cuboid region F4, and the metatarsal includes a medial metatarsal region F2 and a lateral metatarsal region F3.
In this regard, the regions are divided for the convenience of description.
For example, the tarsal bones may be divided into the calcaneus region F5, the navicula located at an anterior portion in front of the talus, the cuboid located at an outer side of the foot, and three arch-shaped cuneiform located in front of the navicula.
Therefore, although it is shown in the drawing that the medial metatarsal region F2 and the lateral metatarsal region F3 are divided into each other, some may be included in the calcaneus region F5.
Furthermore, in the present disclosure, as shown in FIG. 2, the direction of the phalanges (acropodium) region F1 with respect to the sole of the human is defined as a front direction F, the direction of the calcaneus region F5 with respect to the sole of the human is defined as a rear direction R, the inner direction with respect to the metatarsals of the sole is defined as a medial direction, and the outer direction with respect to the metatarsals of the sole is defined as a lateral direction L.
The first absorbing pad means 180 disposed in the hybrid insole 100 of the present disclosure may be disposed in the insole body 110 corresponding to the metatarsal regions F2 and F3 and calcaneus region F5 of the human foot.
Furthermore, the second absorbing pad means 190 may be disposed in the insole body 110 corresponding to a region between the metatarsal regions F2 and F3 and phalanges (acropodium) region F1 of the human foot.
Furthermore, the first absorbing pad means 180 includes a first absorbing pad portion 180 a located at a position corresponding to the metatarsal regions F2 and F3 of the human foot 300; second and third absorbing pad portions 180 b and 180 c located at a position corresponding to a region between the metatarsal regions F2 and F3 and the calcaneus region F5 of the human foot 300; a fourth absorbing pad portion 180 d located at a position corresponding to the calcaneus region F5 of the human foot 300; and first to third connecting portions 181 a, 181 b, and 181 c that selectively connect the first to fourth absorbing pad portions 180 a, 180 b, 180 c, and 180 d to each other.
Here, the second absorbing pad portion 180 b corresponds to the medial metatarsal region F2, and the third absorbing pad portion 180 c corresponds to the lateral metatarsal region F3. However, each region does not strictly correspond to a part referring to each component of the human foot 300.
Therefore, the second absorbing pad portion 180 b may overlap a portion of the talus region F4 of the tarsal bones, the navicula, the cuboid, and the cuneiform. Further, the third absorbing pad portion 180 c may also overlap a portion of the metatarsal region F2, the cuboid of the tarsal bones, the calcaneus region F5, etc.
The first to third connecting portions 181 a, 181 b, and 181 c may be selectively connected to the absorbing pad portions constituting the first absorbing pad means 180 a, respectively. To be more specific, the first connecting portion 181 a may connect the first absorbing pad portion 180 a and the second absorbing pad portion 180 b, the second connecting portion 181 b may connect the third absorbing pad portion 180 c and the fourth absorbing pad portion 180 d, and the third connecting portion 181 c may connect the second absorbing pad portion 180 b and the fourth absorbing pad portion 180 d. Although not shown in the drawings, in some cases, a connecting portion connecting the first absorbing pad portion 180 a and the third absorbing pad portion 180 c may be further disposed.
Each of the first to fourth absorbing pad portions 180 a, 180 b, 180 c, and 180 d and the first to third connecting portions 181 a, 181 b, and 181 c is formed to have a space therein. Furthermore, the internal space may be filled with liquid gel LG having fluidity. In particular, in order to secure the fluidity of the liquid gel, the internal space of the absorbing pad portion may be filled with the liquid gel to have a certain space. The liquid gel may use silicone-based gel having excellent elasticity. The viscosity of the liquid gel that is used may be variously selected according to the degree to which a weight load is applied to the human foot.
As such, since each of the first to fourth absorbing pad portions 180 a, 180 b, 180 c, and 180 d and the first to third connecting portions 181 a, 181 b, and 181 c disposed in the hybrid insole 100 of the present disclosure is formed to have the space therein, it may be formed in an absorption tube type. In this connection, as shown in FIGS. 15 and 16, the absorption tube may be formed of carbon fiber or synthetic resin. In some cases, this may be formed of a silicone-based material.
Furthermore, since the second absorbing pad means 190 is also formed in a structure similar to that of the first to fourth absorbing pad portions 180 a, 180 b, 180 c, and 180 d, the second absorbing pad means may be referred to as a fifth absorbing pad portion. The absorption tube forming the second absorbing pad means 190 referred to as the fifth absorbing pad portion may also be formed of carbon fiber or synthetic resin. In other words, the material and structure described with reference to FIGS. 15 to 17 may be equally applied to FIGS. 1 to 14.
Furthermore, the first to third connecting portions 181 a, 181 b, and 181 c may have a tube structure that is opened on both sides, unlike the first to fifth absorbing pad portions 180 a, 180 b, 180 c, 180 d, and 190. However, the first to third connecting portions may be formed of the same material as that of the absorption tube disposed in each of the first to fifth absorbing pad portions 180 a, 180 b, 180 c, 180 d, and 190.
Furthermore, each of the first to third connecting portions 181 a, 181 b, and 181 c may include an injection port to inject the liquid gel. Here, the liquid gel LG is a liquid gel in which first and second buffer particles BP1 and BP2 shown in FIGS. 15 and 16 are not mixed. However, as shown in FIGS. 15 and 16, the first and second buffer particles BP1 and BP2 are mixed in the liquid gel to enhance the distribution ability and absorbing ability of the weight load of a human body.
The second absorbing pad means 190 composed of the fifth absorbing pad portion may be disposed in the insole body 110 corresponding to the region between the metatarsal regions F2 and F3 and the phalanges region (acropodium) F1 of the human foot 300. The second absorbing pad means 190 may be formed in the shape of a pad having no internal space, unlike the first absorbing pad means 180. The absorption tube of the second absorbing pad means 190 may be formed of a silicone-based material.
As shown in FIG. 2, when the insole body 110 forming the hybrid insole 100 of the present disclosure is composed of a plurality of sheet layers, the first and second absorbing pad means 180 and 190 should be attached to the insole body 110. In particular, unless the first and second absorbing pad means 180 and 190 are firmly attached to the insole body 110, the first and second absorbing pad means 180 and 190 may be separated and removed from the insole body 110.
Therefore, the region of the insole body 110 at which the first and second absorbing pad means 180 and 190 are located should be attached with a compression force stronger than that of another region. A first compression region X shown in FIG. 2 is a region having a compression force stronger than that of another region (second compression region Y).
In other words, the insole body 110 has the first compression region X formed along the periphery of the region where the first and second absorbing pad means 180 and 190 are disposed.
Furthermore, since the first and second absorbing pad means 180 and 190 disposed in the hybrid insole 100 of the present disclosure serve to absorb and distribute the weight load of the human body, the weight load of the human body needs to be uniformly distributed to the pads with respect to the sole surface of the human foot 300.
Taking this into account, the first and second absorbing pad means 180 and 190 disposed in the hybrid insole 100 of the present disclosure are formed in different shapes and structures according to each region of the human foot 300.
The first absorbing pad portion 180 a of the first absorbing pad means 180 is disposed in a region corresponding to a dome-shaped arch formed by the middle second, third, and fourth metatarsals of the human foot 300.
The arch region of the metatarsal serves to reduce shock with the ground, which is especially exerted on the front part of the sole, when a person is walking or jogging.
The arch region of the metatarsal is small, but serves to reduce the weight load generated in the phalange direction (front direction F) of the sole to 60%.
Referring to a section taken along line II-II′ of FIG. 4, since the first absorbing pad portion 180 a supports the dome-shaped arch of the metatarsal regions F2 and F3, the section is formed such that a central region is convex and a thickness is decreased in the medial direction M and the lateral direction L. Therefore, the first absorbing pad portion 180 a may be formed in a heart-, gastrointestinal-, or kidney-shaped structure.
A central thickness D1 of the first absorbing pad portion 180 a may be set to five to six times the thickness D of the insole body 110. For example, when the thickness of the insole body 110 is 0.5 mm, the thickest central region of the first absorbing pad portion 180 a may be formed to be 2.5 to 3 mm.
Furthermore, the first absorbing pad portion 180 a may be formed such that a thickness thereof decreases towards both side edges M and L or front and rear edges F and R with respect to the center.
The longest region (longitudinal side) of the first absorbing pad 180 a may be set to 45 mm, and a transverse side thereof may be set to 35 mm.
However, this describes an embodiment, and design values may be variously changed according to the shape of the human foot, use environment and conditions.
Furthermore, the second absorbing pad portion 180 b is disposed at a position corresponding to the medial tarsal bone region F4 and supports a longitudinal portion of the human foot 300, i.e., the medial longitudinal arch. Since the sole of the human body is a sunken region, the center of gravity moves in the medial direction M when balance is broken. This causes joint displacement and cartilage deformation such as the internal rotation of leg bones and the twisting of pelvis.
Therefore, the second absorbing pad portion 180 b is preferably configured such that it is highest (thickest) in medial edge M and is reduced in height in the lateral direction L.
Referring to the sectional view taken along line III-III′ of FIG. 5A, a right side is the medial direction M of the insole of the left foot of FIG. 2, and a left side is the lateral direction L thereof. The second absorbing pad portion 180 b has an inclined surface, a height of which is sequentially lowered in a direction from the medial region M to the lateral region L (structure in which the thickness is sequentially reduced).
Furthermore, referring to the section taken along line A-A′ of FIG. 5B in the front direction F and the rear direction R, it can be seen that the medial region M is generally high and the thickness is reduced in both side edge regions.
Therefore, the insole has the shape of a three-dimensional long streamlined triangular pyramid (its section has the shape of a long triangle) while a surface is formed round.
The thickest medial region D2 of the second absorbing pad portion 180 b may be set to 11 to 12 times the thickness of the insole body 110. For example, when the thickness of the insole body 110 is 0.5 mm, the thickest medial region of the second absorbing pad portion 180 b may have the thickness of 5.5 to 6 mm. The length thereof may be set such that the longest region of the longitudinal side is 85 mm and the transverse side is 30 mm.
However, this describes an embodiment, and design values may be variously changed according to the shape of the human foot, use environment and conditions.
Furthermore, the third absorbing pad portion 180 c is disposed at a position corresponding to the lateral tarsal bones and the metatarsal region F2 and supports the longitudinal portion of the human foot 300, i.e., the lateral longitudinal arch. Since this is a region adjacent to the second absorbing pad portion 180 b and the lateral region of the sole, this has the shape of an arch opposite to that of the medial longitudinal arch.
In particular, since the lateral region of the sole of the human is a part contacting the ground, the third absorbing pad portion is formed to be low in the height of the dome and be elongated.
Referring to the sectional view taken along line IV-IV′ of FIG. 6A, a left side is the lateral direction L and a right side is the medial direction M. The third absorbing pad portion 180 c has an inclined surface, a height of which is sequentially lowered in a direction from the lateral region L to the medial region M. Further, referring to the sectional view taken along line B-B′ of FIG. 6B, it can be seen that the third absorbing pad portion has a large thickness because the lateral region is cut.
As such, the third absorbing pad portion 180 c is formed such that a thickness thereof is reduced in a direction from the lateral region L to the medial region M. The thickness D3 of the thickest lateral region of the third absorbing pad portion 180 c may be set to five to six times the thickness D of the insole body 110. For example, when the thickness of the insole body 110 is 0.5 mm, the thickest lateral region of the third absorbing pad portion 180 c may be formed to be 2.5 to 3 mm.
The length of the longitudinal side of the third absorbing pad portion 180 c may be set to 65 mm, and the length of the transverse side thereof may be set to 20 mm.
However, this describes an embodiment, and design values may be variously changed according to the shape of the human foot, use environment and conditions.
Furthermore, the fourth absorbing pad portion 180 d is disposed at a position corresponding to the calcaneus region F5 and supports a heel region of the human foot 300. In particular, the calcaneus region F5 of the human foot 300 is a region where the weight load of the human body is the largest and is directly applied.
Since the fourth absorbing pad portion 180 d supports the heel of the human foot 300, the fourth absorbing pad portion may be formed in a round shape to support only a heel bottom, or be formed in the structure of a round horse's hoof in which a surface in the front direction is straight and it surrounds the heel region in another direction.
Here, a case where the fourth absorbing pad portion 180 d has the shape of the horse's hoof will be mainly described. Since the fourth absorbing pad portion 180 d uniformly supports the entire region of the heel, the fourth absorbing pad portion is formed to have a uniform thickness (height).
Referring to the sectional view taken along line V-V of FIG. 7, it can be seen that the fourth absorbing pad portion 180 d has a uniform thickness in a direction from the medial region M to the lateral region L.
The thickness D4 of the fourth absorbing pad portion 180 d may be set to five to six times the thickness D of the insole body 110. For example, when the thickness of the insole body 110 is 0.5 mm, the thickness may be formed to be 2.5 to 3 mm. The length of the longitudinal side of the fourth absorbing pad portion may be set to 55 mm, and the length of the transverse side thereof may be set to 50 mm.
However, this describes an embodiment, and design values may be variously changed according to the shape of the human foot, use environment and conditions.
Furthermore, the second absorbing pad means 190 is disposed between the metatarsal regions F2 and F3 the phalange region F1, and is formed in the structure of an elliptical film Bar. The thickness D5 of the second absorbing pad means 190 may be formed to be uniform, and be formed to be three to fourth times the thickness D of the insole body 110.
Referring to the sectional view taken along line I-I′ of FIG. 3, it can be seen that the thickness of the second absorbing pad means 190 is uniform in the direction from the medial region M to the lateral region L.
When the thickness of the insole body 110 is 0.5 mm, the thickness (height) of the second absorbing pad means 190 may be formed to be 1.5 to 2 mm, the width thereof may be formed to be 2 mm, and the length thereof may be formed to be 70 mm.
However, this describes an embodiment, and design values may be variously changed according to the shape of the human foot, use environment and conditions.
As such, the hybrid insole with the multi-shock absorbing pad and the method for fabricating the hybrid insole according to the present disclosure is advantageous in that absorbing pads of different structures are disposed to correspond to the bone structure for each region of the foot and the shape of an arch, thus distributing and absorbing the weight load of the human body.
Further, the hybrid insole with a multi-shock absorbing pad and the method for fabricating the hybrid insole according to the present disclosure is advantageous in that a solid absorbing pad having an excellent elastic force is disposed in a region corresponding to a phalange region of a human foot, and absorbing pads in which liquid gel having elastic force and fluidity is injected are disposed in regions corresponding to the metatarsal region, tarsal bone region, and calcaneus region of the human foot to perform absorbing, distributing, and balancing operations in response to a change in the weight load applied to the foot.
Furthermore, the hybrid insole with the multi-shock absorbing pad and the method for fabricating the hybrid insole according to the present disclosure is advantageous in that a plurality of absorbing pads in which liquid gel having elastic force and fluidity is injected are connected to each other, thus absorbing and distributing shocks through the flow of the liquid gel in response to a change in weight load applied to each region of the sole when walking or jogging.
Furthermore, the hybrid insole with the multi-shock absorbing pad and the method for fabricating the hybrid insole according to the present disclosure is advantageous in that a phalange region uses a solid absorbing pad depending on the structure of bones constituting the human foot, and a metatarsal region, a tarsal bone region, and a calcaneus region where a force applied by a weight load is large and varied use a plurality of absorbing pads having a fluid liquid gel, thus ergonomically and uniformly distributing and lessening the weight load applied to the human foot and preventing the pain and deformation of the foot.
Furthermore, the hybrid insole with the multi-shock absorbing pad and the method for fabricating the hybrid insole according to the present disclosure is advantageous in that a liquid gel having elastic force and fluidity, first buffer particles made of silica-base material, and second buffer particles composed of carbon nanoparticles are mixed and provided in absorbing pads attached to an insole body, thus absorbing and distributing the weight load of the human body transmitted to the foot.
FIGS. 8A to 8D are diagrams showing a state in which first and second absorbing pad means disposed in the hybrid insole of the present disclosure support a human foot.
Referring to FIGS. 8A to 8D together with FIG. 2, the second absorbing pad portion 180 b disposed in the hybrid insole 100 of the present disclosure is disposed in the medial tarsal bone region F3 of the human foot 300. The medial tarsal bone region F3 has a structure corresponding to the longitudinal portion, i.e., the medial longitudinal arch.
After the weight load applied to the human foot during walking or jogging is first applied to the talus region F4 through a tibia F6, the weight load is absorbed while 50% of the weight load being uniformly distributed and transmitted to each of the calcaneus F5 in the rear and the metatarsal regions F2 and F3 and the phalange region F1 in the front. The medial longitudinal arch structure is a dome-shaped arch structure with a greater depth in the medial direction of the human foot. Thus, unless the weight load is supported, the internal rotation of the leg bones may occur, thus causing the knee joint to be twisted, causing the pelvis to be tilted to one side, and thereby adversely affecting the spine.
In order to prevent the problems, the second absorbing pad portion 180 b has a structure in which the edge in the medial direction M is the highest (thickest) and the height is lowered (thin) in the lateral direction L.
Furthermore, the third absorbing pad portion 180 c corresponds to the lateral tarsal bone and the metatarsal region F2, and the foot of the human has the structure of the lateral longitudinal arch as shown in FIG. 8B. As described above, the structure of the lateral longitudinal arch has the structure of a dome that is long along the lateral surface of the human foot.
Therefore, the third absorbing pad portion 180 c has an inclined surface, the height of which is sequentially lowered in a direction from the lateral region L to the medial region M.
Furthermore, the first absorbing pad portion 180 a corresponds to the metatarsal regions F2 and F3, and the foot of the human has the structure of the metatarsal arch as shown in FIG. 8C. In the metatarsal arch, two or three bones form an arch structure depending on a position in the center of the metatarsal of the foot. Therefore, the central region of the metatarsal has the deepest dome structure.
Therefore, the first absorbing pad portion 180 a is formed in a heart-, gastrointestinal-, or kidney-shaped structure in which it is the thickest in the center and is decreased towards both edge regions.
Furthermore, the second absorbing pad means 190 corresponds to a region between the metatarsal regions F2 and F3 and the phalange region F1, and the human foot has a phalange arch structure in which phalanges are horizontally arranged. Since the phalange arch structure has a substantially horizontal arch structure, the second absorbing pad means 190 is of a pad structure having a uniform thickness.
FIGS. 9A to 9C are diagrams showing a mechanism in which the absorbing pad means disposed in the hybrid insole of the present disclosure absorb or distribute shock depending on the weight load of a human body.
Referring to FIGS. 9A to 9C together with FIGS. 1 and 2, the hybrid insole 100 of the present disclosure absorbs and distributes the weight load applied to the human foot during walking or jogging.
In particular, according to the present disclosure, a solid type absorbing pad and liquid-gel type absorbing pads are combined in response to a change in the amount (force) of shock generated when the weight load of the human body is applied to the sole for each walking step, thus fabricating the insole.
Furthermore, the absorbing pads disposed in the hybrid insole 100 of the present disclosure are formed in different shapes to distribute and absorb the weight load depending on the structure and function of the human foot.
Referring to FIG. 9A, (a) when a person walks, a portion to which the weight load is primarily (heel landing) applied is the calcaneus region F5 of the human foot. (b) If the weight load is transmitted through the calcaneus region F5 of the human foot, the pressure of the weight load is applied to the fourth absorbing pad portion 180 d disposed in the insole 100 of the present disclosure. In this case, the liquid gel LG injected into the internal space of the fourth absorbing pad portion 180 d absorbs and distributes the weight load while flowing through the first to third connecting portions 181 a, 181 b, and 181 c to the first, second, and third absorbing pad portions 180 a, 180 b, and 180 c by the shock (pressure) of the transmitted weight load.
In particular, according to the present disclosure, after the liquid gel injected in the absorbing pad portion receives the weight load, the liquid gel moves through the connecting portion between the absorbing pad portions to another absorbing pad portion, so both the function of absorbing the weight load and the function of distributing it to another absorbing pad portion are performed.
Next, as shown in FIG. 9B, (a) the sole is secondarily landed. (b) If the sole is landed, the weight load is transmitted to a lower side through the entire sole region, so all the weight load is transmitted to the first to fourth absorbing pad portions 180 a, 180 b 180 c, and 180 d of the first absorbing pad means 180. In particular, since a strong weight load is transmitted to the calcaneus region in a first stage of the walking step, the weight load is mainly transmitted to the first to third absorbing pad portions 180 a, 180 b, and 180 c in the sole landing step.
As such, since all the weight load of the human body is transmitted to the first absorbing pad means 180, the liquid gel LG injected into the internal space of the first to fourth absorbing pad portions 180 a, 180 b, 180 c, and 180 d constituting the first absorbing pad means 180 moves from the first absorbing pad portion 180 a to the fourth absorbing pad portion 180 d and also moves from the fourth absorbing pad portion 180 d to the first absorbing pad portion 180 a, so the pressure of the weight is evenly transmitted to the sole, the ankle and the knee joint are protected, and simultaneously a body shape is also balanced.
Thereafter, in a third walking step of FIG. 9C, a toe-off step is started such that the weight load is concentrated on the phalange region F1 and the metatarsal regions F2 and F3 (a). (b) In the toe-off step, since the weight load is transmitted between the phalange region F1 and the metatarsal regions F2 and F3, force is applied to a portion of the second absorbing pad means 190, the first absorbing pad portion 180 a, and the second and third absorbing pad portions 180 b and 180 c.
Thus, the liquid gel LG injected into the first to third absorbing pad portions 180 a, 180 b, and 180 c moves from the front region F to the rear region R to absorb and distribute the weight load, and the second absorbing pad means 190 serves to reduce the weight load applied to the phalanges while maintaining its shape.
As such, the hybrid insole with the multi-shock absorbing pad and the method for fabricating the hybrid insole according to the present disclosure is advantageous in that absorbing pads of different structures are disposed to correspond to the bone structure for each region of the foot and the shape of an arch, thus distributing and absorbing the weight load of the human body.
Further, the hybrid insole with a multi-shock absorbing pad and the method for fabricating the hybrid insole according to the present disclosure is advantageous in that a solid absorbing pad having an excellent elastic force is disposed in a region corresponding to a phalange region of a human foot, and absorbing pads in which liquid gel having elastic force and fluidity is injected are disposed in regions corresponding to the metatarsal region, tarsal bone region, and calcaneus region of the human foot to perform absorbing, distributing, and balancing operations in response to a change in the weight load applied to the foot.
Furthermore, the hybrid insole with the multi-shock absorbing pad and the method for fabricating the hybrid insole according to the present disclosure is advantageous in that a plurality of absorbing pads in which liquid gel having elastic force and fluidity is injected are connected to each other, thus absorbing and distributing shocks through the flow of the liquid gel in response to a change in weight load applied to each region of the sole when walking or jogging.
Furthermore, the hybrid insole with the multi-shock absorbing pad and the method for fabricating the hybrid insole according to the present disclosure is advantageous in that a phalange region uses a solid absorbing pad depending on the structure of bones constituting the human foot, and a metatarsal region, a tarsal bone region, and a calcaneus region where a force applied by a weight load is large and varied use a plurality of absorbing pads having a fluid liquid gel, thus lessening the weight load applied to the human foot and preventing the deformation of the foot.
FIGS. 10 to 12 are diagrams showing embodiments of first and second spacers formed in absorbing pad portions of the hybrid insole of the present disclosure.
Referring to FIGS. 10 to 12, a plurality of first spacers SP1 and second spacers SP2 are formed in the absorbing pad portions disposed in the hybrid insole of the present disclosure to impart resistance to the fluidity of the liquid gel LG. To be more specific, the first and second spacers SP1 and SP2 having different lengths may be alternately disposed on the upper surface US in the internal space of the absorbing pad portion PAD. The length of the first spacer SP1 is formed to be longer than the length of the second spacer SP2 and be shorter than a distance between the upper surface US and the lower surface BS of the internal space of the absorbing pad portion PAD.
As shown in FIGS. 11 and 12, the first and second spacers SP1 and SP2 may be alternately disposed on the lower surface BS of the absorbing pad PAD or be alternately disposed on both the upper surface US and the lower surface BS.
As shown in FIG. 12, when the first and second spacers SP1 and SP2 are formed on both the upper surface US and the lower surface BS of the absorbing pad PAD, the spacers disposed on the upper surface US and the spacers disposed on the lower surface US may be alternately arranged so that they are not in contact with each other.
FIG. 13 is a diagram showing the flow of the liquid gel LG when the first and second spacers are formed in the absorbing pad portions of the hybrid insole of the present disclosure.
Referring to FIG. 13, when the first and second spacers SP1 and SP2 are disposed in the internal space of the absorbing pad PAD as shown in FIGS. 10 to 12, the liquid gel LG does not rapidly move to an adjacent absorbing pad region by the weight load transmitted from the outside, but moves under the resistance by the first and second spacers SP1 and SP2.
In other words, if the weight load is transmitted to the absorbing pad PAD, the weight load transmitted through the liquid gel LG is moved under the resistance by the spacers SP1 and SP2 formed in the internal space of the absorbing pad PAD, so the absorbing pad PAD can distribute the weight load to adjacent absorbing pads while sufficiently absorbing the weight load.
FIG. 14 is a diagram showing a state in which the number of the first and second spacers formed depending on the position of the absorbing pad portions is varied to absorb and distribute the weight load of the human body, according to another embodiment of the present disclosure.
Referring to FIG. 14 together with FIGS. 9A to 9C, the liquid gel LG is injected into the absorbing pad portions disposed in the hybrid insole of the present disclosure, and the first and second spacers SP1 and SP2 are disposed in the internal space of the absorbing pad portion.
FIG. 14 shows that the absorbing pad corresponding to the calcaneus (heel) region F5 of the human foot is a first absorbing pad PAD1, and the absorbing pad corresponding to the tarsal bone regions F2 and F4 of the human foot is a second absorbing pad PAD2.
As described with reference to FIGS. 9A to 9C, the strongest weight load during walking is transmitted through the calcaneus region F5. Therefore, the strongest force is applied to the first absorbing pad PAD1, and the second absorbing pad PAD2 is relatively weaker than a force applied to the first absorbing pad PAD1.
Therefore, the first spacer SP1 having a long length may be disposed in the fourth absorbing pad portion 180 d corresponding to the calcaneus region F5 in the absorbing pad portion disposed in the insole of the present disclosure, and the second spacer SP2 having a length shorter than that of the first spacer SP1 may be disposed in the first to third absorbing pad portions 180 a, 180 b, and 180 c of a region having a relatively small weight load.
In the hybrid insole of the present disclosure, in the region where the weight load is the largest, the liquid gel LG in the absorbing pad portion is subjected to large resistance by the first spacer SP1 to absorb and distribute a sufficiently large weight load, and then moves the liquid gel LG to an adjacent absorbing pad portion.
In contrast, the second spacer SP2 having a short length is disposed in the first to third absorbing pad portions 180 a, 180 b, and 180 c receiving a relatively small weight load so that the liquid gel LG is more rapidly moved to absorb and distribute the weight load.
Although not shown in the drawings, according to the present disclosure, the length of the spacers disposed in the absorbing pad portions may be sequentially reduced from the calcaneus region F5 to the tarsal bone regions F2 and F4. Therefore, the length of the spacers disposed in the absorbing pad portions may be variously formed.
FIGS. 15 and 16 are diagrams showing a state in which liquid gel mixing with first and second buffer particles is injected into the absorbing pad portion attached to the hybrid insole, according to another embodiment of the present disclosure.
Referring to FIGS. 15 and 16, the absorbing pad portion PAD attached to the hybrid insole of the present disclosure includes an absorption tube TB formed of carbon fiber or synthetic resin, a liquid gel LG injected into the internal space of the absorption tube TB, and first and second buffer particles BP1 and BP2 mixed with the liquid gel LG.
Here, carbon fiber is fiber having a long molecular chain in which numerous carbon atoms form a crystal structure, and is mixed with resin such as epoxy to produce carbon fiber reinforced polymer (CFRP) made of polymer (plastic).
Furthermore, synthetic resin is resin made by chemical treatment, and includes resin such as polyurethane (PU), polyvinyl chloride (PVC), or polyethylene.
Furthermore, the first and second buffer particles BP1 and BP2 are material that may absorb external shocks, and the first buffer particles BP1 may be silica-based material. To be more specific, the first buffer particles BP1 may be fumed type silica particles having a bimodal particle distribution. The second buffer particles BP2 may be carbon nanoparticles such as graphene or graphite oxide.
When the first and second buffer particles BP1 and BP2 are mixed with the liquid gel LG, a dispersion medium composed of polyethylene glycol, ethylene glycol, and polypropylene glycol may be further mixed.
As shown in FIG. 15, the absorbing pad portion PAD disposed in the hybrid insole of the present disclosure contains the liquid gel LG and the first and second buffer particles BP1 and BP2 in the internal space of the absorption tube TB. The first buffer particles BP1 formed of the silica-based material and the second buffer particles BP2 formed of the carbon nanoparticles may selectively adjust a content ratio within a range in which the liquid gel LG may move in the absorption tube TB.
Furthermore, since the first and second buffer particles BP1 and BP2 mixed with the liquid gel LG have different constituents, the additionally mixed dispersion medium may be composed of a dispersion corresponding to the first buffer particles BP1 and a dispersion corresponding to the second buffer particles BP2.
Furthermore, the second buffer particles BP2 composed of the carbon nanoparticles may be 5 to 15% by weight on the basis of a total weight containing the liquid gel LG, and the first buffer particles BP1 composed of the silica-based material may be 10 to 30% by weight on the basis of the total weight containing the liquid gel LG.
Referring to FIG. 16, the absorbing pad portion PAD disposed in the hybrid insole of the present disclosure may have the first spacers SP1 and the second spacers SP2 of different lengths in the absorption tube TB, as in the absorbing pad portion PAD shown in FIG. 12. Since the formation of the spacers has been described with reference to FIG. 12, a detailed description thereof will be omitted.
The liquid gel LG and the first and second buffer particles BP1 and BP2 mixed with the liquid gel LG may be contained in the internal space of the absorbing pad portion PAD. In the absorbing pad portion PAD according to the embodiment of FIG. 16, the absorption tube TB, the liquid gel LG, the first and second buffer particles BP1 and BP2, and the first and second spacers SP1 and SP2 absorb the load of the human body transmitted to the foot.
FIG. 17 is a flowchart showing a method of fabricating a hybrid insole according to an embodiment of the present disclosure.
The method of fabricating the hybrid insole according to the present disclosure illustrated in FIG. 17 may be selectively applied to all of FIGS. 1 to 16. For example, since the first and second buffer particles BP1 and BP2 are mixed with the liquid gel LG in the absorbing pad portions of FIGS. 15 and 16, a mixing process is added. Hereinafter, the process of fabricating the hybrid insole by applying the absorbing pad portions of FIGS. 15 and 16 will be described.
Referring to FIG. 17, the hybrid insole of the present disclosure may be formed of a single sheet layer or a plurality of sheet layers, as illustrated in FIGS. 1 to 7. An insole body forming the hybrid insole is provided. As described above, at least two insole bodies which each have a plane shape corresponding to that of the sole and correspond to both feet are provided (S1701).
Further, in the hybrid insole of the present disclosure, the absorbing pad portion is attached to the rear surface or the upper surface of the insole body to absorb shock when the load of the human body is applied. Therefore, the absorbing pad portion which is attached to the provided insole body is provided. In order to fabricate the absorbing pad portion, the absorption tube with an empty internal space is provided (S1703).
Subsequently, as described above, the liquid gel LG is provided to distribute the load of the human body while moving along the heel region, the central region, and the toe region of the hybrid insole. In an embodiment of the present disclosure, the first buffer particles BP1 composed of the silica-based material and the second buffer particles BP2 composed of the carbon nanoparticles are further mixed with the liquid gel LG together with the dispersion medium (S1703). In this case, as described above, since the first and second buffer particles BP1 and BP2 are formed of different materials, the dispersion medium may be composed of the first and second dispersions corresponding to the first and second buffer particles BP1 and BP2, respectively.
If the first and second buffer particles BP1 and BP2 are mixed with the liquid gel LG, the liquid gel LG is injected into the absorption tube to complete the absorbing pad portion (S1704).
If the absorbing pad portion is completed, the absorbing pad portions may be attached to regions corresponding to the heel region, the central region, and the toe region on the upper surface or the rear surface of the insole body, as illustrated in FIGS. 1 to 9, thus fabricating the hybrid insole (S1705).
To be more specific, the absorbing pad portions PAD of FIGS. 15 and 16 may be the first to fifth absorbing pad portions of the first absorbing pad means 180 and the second absorbing pad means 190 disposed in the hybrid insole 100 of the present disclosure. Therefore, the first to fourth absorbing pad portions forming the first absorbing pad means 180 may be attached to the insole body 110 corresponding to the metatarsal regions F2 and F3 and the calcaneus region F5 of the human foot.
Furthermore, the second absorbing pad means 190 composed of the fifth absorbing pad portion may be attached to the insole body 110 at a position corresponding to a region between the metatarsal regions F2 and F3 and the phalange region (acropodium) F1 of the human foot.
As such, the hybrid insole with the multi-shock absorbing pad and the method for fabricating the hybrid insole according to the present disclosure is advantageous in that absorbing pads of different structures are disposed to correspond to the bone structure for each region of the foot and the shape of an arch, thus distributing and absorbing the weight load of the human body.
Further, the hybrid insole with the multi-shock absorbing pad and the method for fabricating the hybrid insole according to the present disclosure is advantageous in that a solid absorbing pad having an excellent elastic force is disposed in a region corresponding to a phalange region F1 of a human foot, and absorbing pads in which liquid gel having elastic force and fluidity is injected are disposed in regions corresponding to the metatarsal region, tarsal bone region, and calcaneus region of the human foot to perform absorbing, distributing, and balancing operations in response to a change in the weight load applied to the foot.
Furthermore, the hybrid insole with the multi-shock absorbing pad and the method for fabricating the hybrid insole according to the present disclosure is advantageous in that a plurality of absorbing pads in which liquid gel having elastic force and fluidity is injected are connected to each other, thus absorbing and distributing shocks through the flow of the liquid gel in response to a change in weight load applied to each region of the sole when walking or jogging.
Furthermore, the hybrid insole with the multi-shock absorbing pad and the method for fabricating the hybrid insole according to the present disclosure is advantageous in that a phalange region F1 uses a solid absorbing pad depending on the structure of bones constituting the human foot, and a metatarsal region, a tarsal bone region, and a calcaneus region where a force applied by a weight load is large and varied use a plurality of absorbing pads having a fluid liquid gel, thus lessening the weight load applied to the human foot and preventing the deformation of the foot as well as a the twisting of the knee joint.
Furthermore, the hybrid insole with the multi-shock absorbing pad and the method for fabricating the hybrid insole according to the present disclosure is advantageous in that a liquid gel having elastic force and fluidity, first buffer particles made of silica-base material, and second buffer particles composed of carbon nanoparticles are mixed and provided in absorbing pads attached to an insole body, thus absorbing and distributing the weight load of the human body transmitted to the foot.
The above-described embodiment of the present disclosure may be embodied in the form of program instructions which may be executed through various computer components and may be recorded in a computer readable recording medium. The computer readable recording medium may include program instructions, data files, data structures, etc. alone or in combination. The program instructions recorded in the computer readable recording medium may utilize program instructions which are specially designed or configured for the present disclosure, or are known to those skilled in the field of computer software. Examples of the computer readable recording medium include a magnetic medium such as hard disks, floppy disks, or magnetic tapes, an optical recording medium such as CD-ROMs or DVD, a magneto-optical medium such as a floptical disk, and a hardware device configured to store and execute program instructions, such as ROMs, RAMs, or a flash memory. Furthermore, examples of the program instructions include mechanical language codes made by a compiler as well as high-level language codes executable by a computer using an interpreter or the like. A hardware device may be changed into one or more software modules to perform processes according to the present disclosure.
Therefore, the above embodiments are to be construed in all aspects as illustrative and not restrictive. For the sake of simplicity, the description of conventional electronic components, control systems, software, and other functional aspects of the systems may be omitted. Further, connection or connecting members of lines between components shown in the drawings illustrate functional connection and/or physical or circuit connections, and may be substituted or added in an actual device. Furthermore, unless specifically mentioned such as “essentially” or “importantly”, it may not be a component that is necessarily required for the present disclosure.
Although the present disclosure has been described with reference to specific embodiments shown in the drawings, it is apparent to those skilled in the art that the present description is not limited to those exemplary embodiments and is embodied in many forms without departing from the spirit and scope of the present disclosure, which is described in the following claims.
Therefore, the scope of the present disclosure should be determined by the appended claims rather than by the description preceding them.
A hybrid insole with a multi-shock absorbing pad and a method for fabricating the hybrid insole according to the present disclosure is advantageous in that absorbing pads of different structures are disposed to correspond to the bone structure for each region of the foot and the shape of an arch, thus distributing and absorbing the weight load of the human body.
Further, a hybrid insole with a multi-shock absorbing pad and a method for fabricating the hybrid insole according to the present disclosure is advantageous in that a solid absorbing pad having an excellent elastic force is disposed in a region corresponding to a phalange region of a human foot, and absorbing pads in which liquid gel having elastic force and fluidity is injected are disposed in regions corresponding to the metatarsal region, tarsal bone region, and calcaneus region of the human foot to perform absorbing, distributing, and balancing operations in response to a change in the weight load applied to the foot.
Furthermore, a hybrid insole with a multi-shock absorbing pad and a method for fabricating the hybrid insole according to the present disclosure is advantageous in that a plurality of absorbing pads in which liquid gel having elastic force and fluidity is injected are connected to each other, thus absorbing and distributing shocks through the flow of the liquid gel in response to a change in weight load applied to each region of the sole when walking or jogging.
Furthermore, a hybrid insole with a multi-shock absorbing pad and a method for fabricating the hybrid insole according to the present disclosure is advantageous in that a phalange region uses a solid absorbing pad depending on the structure of bones constituting the human foot and the shape of an arch, and a metatarsal region, a tarsal bone region, and a calcaneus region where a force applied by a weight load is large and varied use a plurality of absorbing pads having a fluid liquid gel, thus lessening the weight load applied to the human foot and preventing the deformation of the foot as well as a the displacement of a posture.
Furthermore, a hybrid insole with a multi-shock absorbing pad and a method for fabricating the hybrid insole according to the present disclosure is advantageous in that a liquid gel having elastic force and fluidity, first buffer particles made of silica-base material, and second buffer particles composed of carbon nanoparticles are mixed and provided in absorbing pads attached to an insole body, thus absorbing and distributing the weight load of the human body transmitted to the foot.

Claims

What is claimed is:

1. A hybrid insole comprising:

an insole body comprising at least one sheet layer that is formed of an elastic material and has a shape of a human sole;

first absorbing pad means comprising first to fourth absorbing pad portions attached to the insole body corresponding to a metatarsal region, a tarsal bone region, and a calcaneus region of the human foot, and first to third connecting portions selectively connecting the first to fourth absorbing pad portions; and

second absorbing pad means comprising a fifth absorbing pad portion attached to the insole body corresponding to the metatarsal region and a phalange region of the human foot,

wherein each of the first to fifth absorbing pad portions comprises:

an absorption tube having an internal space;

a fluid liquid gel injected into the internal space of the absorption tube;

a first buffer particle mixed with the liquid gel and formed of a silica-based material; and

a second buffer particle mixed with the liquid gel and formed of a carbon nanoparticle,

wherein the first absorbing pad portion is attached to the insole body corresponding to the metatarsal region of the human foot,

wherein the second and third absorbing pad portions are attached to the insole body at a position corresponding to a region between the metatarsal region and the calcaneus region of the human foot, and

wherein the fourth absorbing pad portion is attached to the insole body corresponding to the calcaneus region of the human foot.

2. The hybrid insole of claim 1, wherein the first to third connecting portions are disposed, respectively, between the first and second absorbing pad portions, between the third and fourth absorbing pad portions, and between the second and fourth absorbing pad portions, so that the liquid gel moves between the first to fourth absorbing pad portions to absorb and distribute a weight load of a human body.

3. The hybrid insole of claim 2, wherein a thickness of the second absorbing pad portion is sequentially decreased in a direction from a medial region to a lateral region of the insole body, and a thickness of the third absorbing pad portion is sequentially decreased in a direction from the lateral region to the medial region of the insole body.

4. The hybrid insole of claim 3, wherein an absorption tube forming the first to fifth absorbing pad portions is an elliptical silicone material having an elastic force.

5. The hybrid insole of claim 1, wherein first and second dispersions of different materials are mixed with the liquid gel disposed in each of the first to fifth absorbing pad portions to disperse the first and second buffer particles.

6. The hybrid insole of claim 3, wherein each of the first to third connecting portions comprises an injection port to inject the liquid gel.

7. The hybrid insole of claim 3, wherein a plurality of first spacers and a plurality of second spacers are formed on an upper surface or a lower surface in the absorption tube disposed in each of the first to fifth absorbing pad portions, the first spacers being integrated with the absorption tube and having a first height, the second spacers being integrated with the absorption tube and having a second height that is smaller than the first height.

8. The hybrid insole of claim 3, wherein a plurality of spacers integrated with the absorption tube are formed on an upper surface or a lower surface in the absorption tube disposed in each of the first to fifth absorbing pad portions, and spacers formed on the first to fourth absorbing pad portions among the plurality of spacers are sequentially decreased in height in a direction from the fourth absorbing pad portion to the first absorbing pad portion.

9. The hybrid insole of claim 1, wherein the first buffer particle is a fumed type silica particle having a bimodal particle distribution.

10. The hybrid insole of claim 9, wherein the first buffer particle is mixed in an amount of 10 to 30% by weight on the basis of a total weight of the liquid gel.

11. The hybrid insole of claim 1, wherein the second buffer particle is composed of a carbon nanoparticle.

12. The hybrid insole of claim 11, wherein the second buffer particle is mixed in an amount of 5 to 15% by weight on the basis of a total weight of the liquid gel.