TW201914458A - Insole - Google Patents

Abstract

An insole is configured to correspondingly dispose under a foot of an individual. The insole includes: a first portion configured to correspond to fore-foot of the foot; a second portion configured to correspond to a mid-foot of the foot; a third portion configured to correspond to rear-foot of the foot; a first arc corresponding to the arc of the lateral arch of the foot; a second arc corresponding to the arc of the medial arch of the foot; a third arc corresponding to the arc of the metatarsal arch of the foot; and a fourth arc corresponding to the arc of transverse arch of the foot.

Description

insole

The present invention relates to an insole, and more particularly to an insole configured with a bone hole and a heel cup to reduce the burden on the foot.

Whether it's sports or participating in travel, or even daily activities, people often need to walk in shoes. In the process of walking, in addition to the weight of the whole body, the foot must move the body by the force and reaction force between the foot and the ground. Therefore, the foot will be subjected to a great load. If the foot is unable to obtain good support and elasticity, it may cause many problems such as sore feet, excessive supination or pronation of the foot, foot fatigue, and ankle joint damage.

In addition to selecting suitable shoes, it is also possible to use an insole that is easy to obtain, washable, and replaceable without the limitations of the shoe type, to help the foot portion bear the weight. Among them, currently commercially available insoles often use ethylene/vinyl acetate copolymer (EVA) as a main material. EVA's stiffness is insufficient to effectively support the foot bones. At the same time, the resilience of EVA is not good. When the user walks with the EVA insole, the gait push off in the gait cycle will lose a lot of energy, causing the user's foot to fatigue. The problem.

In addition, the commercially available insole cannot completely conform to the foot, so when the user performs various activities, the insole is easily displaced, thereby causing more serious foot injury. Moreover, due to insufficient compliance, the mid-foot portion of the user is difficult to effectively contact the insole, so that the load is concentrated on the forefoot and the back foot of the user. ).

In view of the above problems, an object of the present invention is to provide an insole, which can reduce the burden on the foot, enhance the supporting force and slow the pain of the foot by simultaneously improving the insole arrangement and the insole material. Among them, in order to improve the insole arrangement, four arches corresponding to the lateral lateral arch, the medial arch, the metatarsal arch and the transverse arch are provided with four arches. Different curvatures, corresponding calcanus bones, hole-in heels, and heel fat pads are provided with a heel cup to reduce the burden on the foot.

It is an object of the present invention to provide an insole for corresponding placement under an individual's foot. The insole includes: a first portion configured to correspond to a fore-foot of the foot; configured to correspond to a second portion of the mid-foot of the foot; and configured to correspond to a hind foot of the foot (rear- The third part of the foot). The first part, the second part and the third part are sequentially arranged along one direction such that the second part is disposed between the first part and the third part, and the first part is connected And the third part. Wherein, the insole has a first curvature along one side of the direction, the first curvature corresponds to the curvature of the lateral arch of the outer side of the foot, and the position of the first curvature corresponds to the position of the longitudinal arch of the outer side of the foot. Wherein, the insole has a second curvature along the other side of the direction, the second curvature corresponds to the curvature of the medial arch of the foot, and the position of the second curvature corresponds to the position of the medial longitudinal arch of the foot. Wherein, the third portion has a third arc between the first portion and the second portion, the third arc corresponds to the curvature of the metatarsal arch of the foot, and the position of the third arc corresponds to the position of the transverse arch of the foot of the foot . Wherein, the second portion has a fourth arc between the third portion and the third portion, the fourth arc corresponds to the curvature of the transverse arch of the back of the foot, and the position of the fourth arc corresponds to the position of the crossbow behind the foot. . Wherein, the length of the insole is greater than or equal to 70% of the length of the foot.

Preferably, the insole further comprises: a bone hole disposed to correspond to a position of a calcaneus bone of the foot and penetrating a portion of the third portion.

Preferably, the thickness of the inner edge of the third portion that is in contact with the bone hole is smaller than the thickness of the outer edge of the third portion.

Preferably, the insole further comprises: a heel cup disposed to correspond to a position of a heel fat pad of the foot and disposed at the third portion.

Preferably, the heel cup is placed around the bone hole.

Preferably, the material of the insole comprises a carbon fiber material.

Preferably, the insole comprises a plurality of carbon fiber layers composed of a carbon fiber material, and the entirety of the plurality of carbon fiber layers has a quasi-isotropic property.

Preferably, the thickness of the insole is between 1 mm and 2.5 mm.

Preferably, the ratio of the unloading energy to the loading energy of the hysteresis loop of the insole is greater than or equal to 0.7.

The insole of the present invention has the following advantages:

(1) Since the insole of the present invention includes four arcs corresponding to the four arches of the lateral longitudinal arch, the medial longitudinal arch, the transverse arch of the tibia and the transverse arch of the posterior lateral arch, the insole can completely conform to the foot, thereby providing four The stable support of the arch allows the foot to make appropriate internal and external rotations to meet the needs of human biomechanics. At the same time, the insole of the present invention further comprises a tibial arch, which further supports the transverse arch of the humerus to assist in gait advancement.

(2) Since the insole of the present invention includes a bone hole corresponding to the position of the calcaneus of the foot, the user's calcaneus can be placed in the bone hole in a comfortable manner to disperse the user's movement, and the calcaneus is subjected to The impact, in order to avoid pain in the calcaneus and surrounding fascia.

(3) Since the insole of the present invention includes a heel cup corresponding to the position of the fat pad of the foot, it is possible to disperse the impact of the fat pad when the user moves, thereby preventing pain in the calcaneus of the calcaneus and the surrounding fascia. In addition, the fat pad of the present invention has a function similar to that of a human body fat pad, and thus can improve the walking comfort of a user suffering from atrophy of the fat pad.

(4) Since the insole material of the present invention contains a carbon fiber material, its rigidity is as high as 6800 times that of EVA. Therefore, compared to EVA, carbon fiber materials can effectively support the foot bones. At the same time, since the carbon fiber material has good resilience, the energy consumption caused by energy absorption is hardly generated during the gait promotion period when the user walks, thereby maintaining the propulsion of the walking to increase the gait cycle. The gait propulsion force is used to slow down the fatigue of the foot. At the same time, carbon fiber can effectively disperse the pressure of the sole, increase the absorption of the impact of the foot, maintain the height balance during standing and walking, maintain the stability of the ankle and prevent excessive internal rotation or external rotation of the foot. In addition, the ratio of the unloading energy to the loading energy of the hysteresis loop can be increased, so that it has good energy storage and return characteristics. In addition, in the preferred embodiment of the present invention, since the whole of the insole can be made of a carbon fiber material, the insole of the present invention has good rigidity as a whole, and when the user uses the insole of the present invention, the foot does not generate due to the foot. Imbalance caused by splicing of heterogeneous materials.

In order to make the above objects, technical features, and actual implementation benefits more readily understood by those of ordinary skill in the art, the embodiments will be described in more detail below with reference to the drawings. The drawings are used for the purpose of illustration and supplementary instructions. They are not necessarily true proportions and precise configurations after the implementation of the invention. Therefore, the proportions and configuration relationships of the attached drawings should not be interpreted or limited. The scope of rights invented in actual practice is described in the first place. For ease of understanding, the same elements in the following embodiments are denoted by the same reference numerals.

In an embodiment, the insole may include a first portion, a second portion, and a third portion to correspond to the forefoot, midfoot, and hindfoot of the individual's foot, respectively. In an embodiment, the first portion, the second portion, and the third portion may be sequentially disposed along a particular direction such that the second portion is disposed between the first portion and the third portion. In an embodiment, the second portion can connect the first portion to the third portion. In an embodiment, the particular direction may be the X direction. In an embodiment, the insole may have a first arc corresponding to the curvature of the lateral arch of the foot along one side of the X direction, and the position of the first arc corresponds to the position of the longitudinal arch of the foot. . In one embodiment, the insole may have a second arc corresponding to the curvature of the medial arch of the foot along the other side of the X direction, and the position of the second arc corresponds to the position of the medial longitudinal arch of the foot . In an embodiment, the first portion and the second portion may have a third arc corresponding to the curvature of the metatarsal arch of the foot, and the position of the third arc corresponds to the transverse arch of the foot. s position. In an embodiment, the second portion and the third portion may have a fourth arc corresponding to the curvature of the transverse arch of the back of the foot, and the position of the fourth arc corresponds to the crossbow of the posterior side of the foot. s position. In an embodiment, the length of the insole is greater than or equal to 70% of the length of the foot, preferably greater than or equal to 75% of the length of the foot.

In an embodiment, the individual can be a human. In an embodiment, the individual may be an elderly person, a middle-aged person, a young person, or a child. In one embodiment, the individual may be a patient with various foot diseases such as a patient with atrophy of the fat pad, a patient with plantar fasciitis. In an embodiment, the insole of the present invention may be mirror-symmetrical paired insole for simultaneous use of the user's left and right feet, or the insole of the present invention may be based on the user's left and right feet, respectively. The shapes are individually set correspondingly. In one embodiment, the insole of the present invention can be used alone on the left or right foot of a user to locally relieve pain.

In an embodiment, the insole may include a tibial arch that is configured to correspond to a transverse arch of the humerus to assist in gait advancement. In an embodiment, the humeral arch can be made from carbon fiber. Among them, the area of the humeral arch is between 1,250 and 2,300 square meters. When the area is less than 1,250 square millimeters, the poor balance of the foot may be caused by the incomplete support of the transverse arch of the humerus. At 2,300 square millimeters, the lateral support of the tibia is too wide and the pain is unpleasant. Among them, the height of the humerus arch is higher than the height of the insole is between 8 mm and 12 mm. When the height is less than 8 mm, the sacral crossbow support is insufficient. When the height is higher than 12 mm, This results in a poor effect of the tibia transverse arch support being too high and causing pain.

In one embodiment, the insole may include a bone hole configured to correspond to the position of the calcaneus bone of the foot and through a portion of the third portion to disperse the individual's calcaneus during movement of the foot The impact. In one embodiment, the thickness of the inner edge of the third portion that is in contact with the bone hole is less than the thickness of the outer edge of the third portion. In one embodiment, the thickness of the third portion tapers toward the inner edge of the third portion that meets the bone hole.

In an embodiment, the insole may include a heel cup disposed to correspond to the position of the heel fat pad of the foot and disposed in the third portion to disperse the impact of the fat pad of the foot when the individual moves. . In an embodiment, the heel cup can be placed around the bone hole. In an embodiment, the insole may comprise a bone hole or a heel cup or both a bone hole and a heel cup.

In an embodiment, the material of the insole may comprise a carbon fiber material. In one embodiment, the insole may comprise a plurality of layers of carbon fiber material composed of a carbon fiber material, and because of the plurality of layers of carbon fiber layers arranged at a specific angle and number of layers, the entirety of the plurality of layers of carbon fiber layers is quasi-isotropic ( Quasi-isotropic property). In an embodiment, the insole may comprise 8 layers of carbon fiber layers, each layer being stacked at an angle of 0, 45, 135, 180, 180, 135, 45, and 0 degrees of the carbon fiber layer, respectively, to form a plurality of layers of carbon fiber layers. The whole is quasi-isotropic. In one embodiment, the material of the insole may comprise a conventional polymeric material as generally known in the art. In an embodiment, the insole may be integrally formed or formed separately.

In an embodiment, the thickness of the insole may be between 1 mm and 2.5 mm, preferably between 1.2 mm and 2.2 mm, so that the individual's foot can bear an excellent propulsion capability when subjected to a load (propulsion) When the thickness of the insole is less than 1 mm, the adverse effect of the insufficient support of the foot may occur, and when the thickness of the insole is greater than 2.5 mm, the rigidity of the insole is excessively high, and the adverse effect of the foot pushing ability is reduced. In one embodiment, the ratio of the unloading energy to the loading energy of the hysteresis loop of the insole is greater than or equal to 0.7, thus having good energy storage and return. characteristic.

For ease of explanation, a detailed explanation will be given later on the preferred embodiment.

Referring to Figure 1, there is shown a schematic view of a shoe insole according to a preferred embodiment of the present invention.

As shown, the insole 1 includes a first portion 110, a second portion 120, and a third portion 130. The first portion 110, the second portion 120, and the third portion 130 are sequentially disposed in series and connected to each other. In an embodiment, the first portion 110, the second portion 120, and the third portion 130 may be sequentially disposed along the X direction. The first portion 110 corresponds to a portion of the forefoot other than the toe. The second portion 120 corresponds to the midfoot. The third portion 130 corresponds to the hind foot. At the same time, the insole 1 includes a first curvature A1, a second curvature A2, a third curvature A3 and a fourth curvature corresponding to the outer curvature of the outer side of the foot, the medial longitudinal arch, the transverse arch of the tibia and the transverse arch of the foot, respectively. A4, so that the insole can fully fit the user's foot, providing a complete and comprehensive support for the user's foot. And because the surface curvature and the geometric shape of the insole have been applied to the foot, the insole can automatically conform to the user's foot shape when the user wears the insole, so the user does not need to use any adhesive to fix the insole. On the shoes, there will be no sliding displacement during use. At the same time, the second curvature A2 enables the midfoot region to effectively contact the insole, increasing the overall contact area, and dispersing the pressure of the forefoot region and the heel.

During the heel strike phase to the mid-stance phase of the gait cycle, the first curvature A1, the second curvature A2, and the fourth curvature A4 cause the insole to have shock absorption. Mid-foot support, maintenance of gait posture and maintenance of bone position. In the mid-stance phase to the push-off period of the gait cycle, the first arc A1, the second arc A2 and the third arc A3 cause the insole to have a rebound propulsion function, achieving energy Storage and feedback to reduce the energy consumption of the muscles, thus making it easier to walk or exercise.

As shown, the insole 1 further includes a bone hole 140 disposed to correspond to a position of the calcaneus of the foot and extending through a portion of the third portion, configured to correspond to the position of the fat pad of the foot, and disposed at the The three-part heel cup 150 is used to support the humeral crossbow to assist the gait advancement of the humeral arch 160. Wherein, along the X direction, the distance between the center of the tibial arch 160 and the edge of the third portion 130 away from the first portion 110 may be 128 to 172 mm, when less than 128 mm or greater than 172 mm. It may be difficult to correctly place the transverse arch of the humerus on the tibial arch 160, causing problems of the user's foot discomfort.

Referring to Figure 2, there is shown a schematic view of a bone hole in accordance with a preferred embodiment of the present invention.

As shown, the bone hole 140 is configured to correspond to the position of the user's calcaneus 141 and is disposed through a portion of the third portion 130 to disperse the pressure of the calcaneus 141. The thickness of the third portion 130 decreases toward the inner edge of the third portion 130 and the bone hole 140, so that the thickness of the inner edge of the third portion 130 and the bone hole 140 is smaller than the third portion 130. The thickness of the rim is such that the foot has sufficient space to place. The area of the bone hole 140 is adjusted corresponding to the area of the calcaneus 141. The hole area of the bone hole 140 may be 610 to 1200 square meters. When less than 610 square meters, the space for the calcaneus and the fat pad may be generated. If the effect is insufficient, when it is more than 1200 square millimeters, the space for placing the calcaneus and the fat meat pad may be too large, and the shape of the fat meat pad may not be maintained, which may result in insufficient buffering of the foot and the bone. The shape of the bone hole 140 is adjusted corresponding to the shape of the calcaneus 141. In an embodiment, the shape of the bone hole 140 may be a drop shape. Wherein, along the X direction, the distance between the center of the bone hole 140 and the edge of the third portion 130 away from the first portion 110 may be 36 to 50 mm, when less than 36 mm or greater than 50 mm, There may be a problem that the calcaneus 141 is difficult to properly place on the bone hole 140, causing discomfort to the user's foot.

Referring to Figure 3, there is shown a schematic view of a heel cup in accordance with a preferred embodiment of the present invention.

As shown, the heel cup 150 is disposed to correspond to the position of the fat pad 151 around the user's calcaneus 141 and is disposed on the third portion 130 to disperse the impact experienced by the fat pad 151. The heel cup 150 is disposed around the bone hole and covers the heel at a height h1, and the ability to disperse the impact is enhanced by the height h2, so that the impact can be effectively dispersed. Among them, the height h1 may be 1.8 to 2.5 cm. When the height h1 is less than 1.8 cm, the excessive internal rotation of the foot with insufficient medial longitudinal arch support may occur, and when the height is greater than 2.5 cm, the medial longitudinal arch may be generated. The excessive effect of excessive external rotation of the foot is supported. Wherein, the height h2 may be 0.7 to 1.1 cm, and when the height h2 is less than 0.7 cm, the excessive external rotation of the foot with insufficient lateral longitudinal arch support may occur, and when the height is greater than 1.1 cm, the lateral longitudinal arch may be generated. The excessive effect of excessive internal rotation of the foot is supported.

Referring to Figure 4, there is shown a schematic view of the use of the insole of the preferred embodiment of the present invention. Fig. 4(a) is a left side view, Fig. 4(b) is a plan view, and Fig. 4(c) is a right side view.

As shown in Fig. 4(a), since the insole has a first curvature A1 corresponding to the outer longitudinal arch, the first curvature A1 has a height H1 corresponding to the imaginary line G of the ground when viewed from the left side of the insole, so that the foot The midfoot is supported by the first arc A1. In general, H1 can be 0.7 to 1.1 cm. When the user is a high arch, H1 can be 1.1 to 1.3 cm. When the user is a low arch, H1 can be 0.5 to 0.7 cm. Therefore, the height H1 can be adjusted according to the height of the arch of the user, so the insole of the present invention can be widely applied to users having various types of arches.

As shown in Fig. 4(c), since the insole has a second curvature A2 corresponding to the inner longitudinal arch, the second curvature A2 has a height H2 corresponding to the imaginary line G of the ground when viewed from the right side of the insole, so that the foot The midfoot is supported by the second arc A2. In general, H2 can be 1.8 to 2.5 cm. When the user is a high arch, H2 can be 2.5 to 2.7 cm. When the user is a low arch, H2 can be 1.6 to 1.8 cm. Therefore, the height H2 can be adjusted according to the height of the arch of the user, so the insole of the present invention can be widely applied to users having various types of arches.

As shown in Fig. 4(b), the first portion 110 of the insole corresponds to a portion of the forefoot of the foot other than the toe. The second portion 120 of the insole corresponds to the midfoot of the foot. The third portion 130 of the insole corresponds to the hind foot of the foot. And the length L2 of the insole is greater than or equal to 75% of the length L1 of the foot to provide a supporting force for the integral foot other than the toe.

Referring to Figure 5, there is shown a schematic view of an insole material in accordance with a preferred embodiment of the present invention.

Following the above, the preferred embodiment of the present invention utilizes a carbon fiber material as the insole material. As shown in Fig. 5, the insole may comprise 8 layers of carbon fibers, and each layer is stacked at an angle of 0, 45, 135, 180, 180, 135, 45, and 0 degrees of the fiber arrangement direction of the carbon fiber layer, respectively, so that the carbon fiber material has The isotropic isotropic, that is, by such an arrangement, the in-plane elastic properties exhibited by the carbon fiber material as a whole are isotropic, and the Young's modulus E in all directions is equal. Therefore, the insole of the preferred embodiment of the present invention can be uniformly provided with an elastic force without being restricted by the direction in which the fibers are arranged.

Following the above, the nature of the preferred embodiment of the present invention is analyzed. At the same time, EVA was chosen as a comparative example.

Referring to Figure 6, there is shown a graph of stress and strain for a preferred embodiment of the present invention.

As shown in Figure 6, the traditional common insole material is EVA, but the rigidity of EVA is insufficient (07443/0.6=1.2). Compared with the rigidity of carbon fiber material (1143/0.14=8164), the rigidity of carbon fiber material is EVA material. 6800 times. Therefore, carbon fiber materials can effectively support the foot bones. In addition, EVA's rebound ability is not good, most of the energy applied by the user to the foot will be absorbed, resulting in more energy loss during the gait propulsion period, resulting in user fatigue. However, carbon fiber has excellent resilience and almost no energy absorption loss, so that thrust can be generated during the gait propulsion period.

Referring to Figure 7, there is shown a schematic diagram of a finite element software simulation of a preferred embodiment of the present invention. Fig. 7(a) is a schematic view of the period from the heel to the middle of the standing period, and Fig. 7(b) is a schematic view of the middle to the middle of the propulsion period.

As shown in Fig. 7, during the heel period of the gait cycle to the mid-stance period, the insole is subjected to loading due to the user's weight, and the maximum amount of deformation and stress is generated inside the insole. In the middle of the stance to the advancement period, the insole is in an unloading state, at which point the insole rebounds and gives propulsion. Therefore, repeated gait behavior causes the insole to produce a repeated load-loading phenomenon, called the hysteresis phenomenon, and can be represented by a hysteresis loop. Where E _l = ΔE + E _u , E _l represents the energy generated by the insole material during loading, E _u represents the energy released by the insole when no load is applied, ΔE represents the energy absorbed (loss) of the insole, and the energy is expressed in units of the curve. , and the propulsion ability is expressed by E _u /E _l x100%, so when the value of E _u /E _l is larger, the propulsion ability is correspondingly better.

Referring to Figure 8, it is a schematic diagram of the propulsion test of the preferred embodiment of the present invention.

As shown, the insole 1 is secured by a clamp 801 and a force 800 is applied to the inside of the insole 1 to place the insole 1 in a loaded state 810 and an unloaded state 820, and the propulsion of the insole 1 having a thickness D is analyzed, the result of which is Figure 9 to Figure 15 show.

Referring to Fig. 9, which is a propulsion analysis chart of a comparative example of the present invention, the thickness of the EVA is 0.5 mm. 10 to 15 are propulsion analysis diagrams of the insole thicknesses of 1.2 mm, 1.4 mm, 1.6 mm, 1.8 mm, 2.0 mm, and 2.2 mm, respectively, of the preferred embodiment of the present invention.

As shown in Fig. 9, the area calculated by the integral shows that the E _u of the unit area is 450.29, the ΔE system is 971.27, the E _l system is 1421.56 (971.27+450.29=1421.56), and the E _u /E _l x100% is 31.6. %. And so on, the values in Figures 10 to 15 are calculated, and the results are shown in Table 1.

Table 1

As shown in Table 1, when the thickness D of the carbon fiber material is between 1.2 mm and 2.2 mm, the propulsion capacity is 76% to 95.8%, which is much higher than the 32.6% of the conventional EVA material. At the same time, the E _{l of the} carbon fiber material is excellent, about 30496~83186, which is much higher than the 1421 of the traditional EVA material. Therefore, the carbon fiber material used in the insole of the invention has excellent energy storage and feedback.

Referring to Figures 16 through 21, there are respectively a top perspective view, a bottom perspective view, a top view, a bottom view, a left side view, and a right side view of the insole of the preferred embodiment of the present invention. As shown in the figure, it can be seen that the insole 2 of the present invention does have a first curvature, a second curvature, a third curvature, and a fourth curvature that can correspond to the four arches, and does have a bone hole 140 corresponding to the calcaneus, corresponding to the transverse bone. The humeral arch of the bow is 160 and the heel cup 150 of the fat pad.

Although the present invention has been described in detail with reference to the embodiments and examples, it should be understood by those of ordinary skill in the art that the present invention can be practiced without departing from the technical principles and spirit of the invention. Modifications and changes. Therefore, the scope of protection of the present invention should be as described in the patent application.

1, 2‧‧‧ insoles

110‧‧‧Part 1

120‧‧‧Part II

130‧‧‧Part III

140‧‧‧Bone hole

141‧‧‧Bone bone

150‧‧‧foot cup

151‧‧‧fat pad

160‧‧‧Sacral arch

800‧‧‧ Strength

801‧‧‧ fixture

810‧‧‧Load status

820‧‧‧No load status

A1‧‧‧ first radian

A2‧‧‧second radian

A3‧‧‧ third radian

A4‧‧‧ fourth radian

D‧‧‧thickness

H1, h2, H1, H2‧‧‧ height

G‧‧‧ imaginary line

L1, L2‧‧‧ length

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic view of a shoe insole according to a preferred embodiment of the present invention.

Figure 2 is a schematic view of a bone hole in accordance with a preferred embodiment of the present invention.

Figure 3 is a schematic view of a heel cup in accordance with a preferred embodiment of the present invention.

Figure 4 is a schematic view showing the use of the insole of the preferred embodiment of the present invention.

Figure 5 is a schematic view of the insole material of the preferred embodiment of the present invention.

Figure 6 is a graph of stress and strain for a preferred embodiment of the present invention.

Figure 7 is a schematic diagram of a finite element software simulation of a preferred embodiment of the present invention.

Figure 8 is a schematic diagram of the propulsion test of the preferred embodiment of the present invention.

Fig. 9 is a diagram showing the propulsive force analysis of the comparative example of the present invention.

10 to 15 are propulsion analysis diagrams of the insole thicknesses of 1.2 mm, 1.4 mm, 1.6 mm, 1.8 mm, 2.0 mm, and 2.2 mm, respectively, of the preferred embodiment of the present invention.

Fig. 16 and Fig. 17 are respectively a top perspective view and a bottom perspective view of the insole of the preferred embodiment of the present invention.

Figure 18 is a plan view of the insole of the preferred embodiment of the present invention.

Figure 19 is a bottom plan view of the insole of the preferred embodiment of the present invention.

Figure 20 is a left side view of the insole of the preferred embodiment of the present invention.

Figure 21 is a right side view of the insole of the preferred embodiment of the present invention.

Claims (9)

An insole for correspondingly disposed under a foot of a body, the insole comprising: a first portion configured to correspond to a forefoot of the foot; a second portion configured to correspond to the foot a mid-foot; and a third portion configured to correspond to a rear-foot; wherein the first portion, the second portion, and the third portion Arranging in a direction such that the second portion is disposed between the first portion and the third portion and connecting the first portion and the third portion; wherein the insole is along One side of the direction has a first curvature corresponding to the curvature of the lateral arch of the foot, and the position of the first curvature corresponds to the position of the longitudinal arch outside the foot; The insole has a second arc along the other side of the direction, the second arc corresponding to the curvature of the medial arch of the foot, and the position of the second arc corresponds to the medial aspect of the foot a position of the bow; wherein the first portion and the second portion have a third arc, the third arc The curvature of the metatarsal arch of the foot, and the position of the third arc corresponds to the position of the transverse arch of the foot; wherein there is a second between the second part and the third part a fourth radians corresponding to the curvature of the transverse arch of the posterior side of the foot, and the position of the fourth arc corresponds to the position of the transverse arch of the posterior side of the foot; and wherein the length of the insole is greater than or equal to 70% of the length of the foot. The insole of claim 1, further comprising: a bone hole configured to correspond to a position of a calcaneus bone of the foot and disposed through a portion of the third portion. The insole of claim 2, wherein the thickness of the inner edge of the third portion that is in contact with the bone hole is less than the thickness of the outer edge of the third portion. The insole of claim 3, further comprising: a heel cup disposed at a position corresponding to a heel fat pad of the foot and disposed in the third portion. The insole of claim 4, wherein the heel cup is disposed around the bone hole. The insole of claim 1, wherein the material of the insole comprises a carbon fiber material. The insole of claim 6, wherein the insole comprises a plurality of carbon fiber layers composed of the carbon fiber material, and the plurality of carbon fiber layers have a quasi-isotropic property as a whole. The insole of claim 1, wherein the insole has a thickness of between 1 mm and 2.5 mm. The insole of claim 1, wherein a ratio of unloading energy to loading energy of the hysteresis loop of the insole is greater than or equal to 0.7.