CN112469301A

CN112469301A - Shoe-pad for shoes

Info

Publication number: CN112469301A
Application number: CN201880095875.0A
Authority: CN
Inventors: 高桥毅; 山中保; 高桥大悟
Original assignee: Bmz Co ltd
Current assignee: Bmz Co ltd
Priority date: 2018-07-24
Filing date: 2018-07-24
Publication date: 2021-03-09
Anticipated expiration: 2038-07-24
Also published as: EP3827689B1; TW202007297A; EP3827689A1; TWI678977B; JPWO2020021622A1; US20210298412A1; JP6799881B2; CN112469301B; KR102463611B1; WO2020021622A1; EP3827689A4; KR20210018435A

Abstract

Provided is an insole for shoes, which enables toes to easily grip the ground while ensuring stability and mobility. An insole (1) for shoes comprises: a calcaneal anterior support protrusion (90) that abuts against the calcaneal anterior (12A) of the foot to maintain the medial longitudinal arch (121), the lateral longitudinal arch (122), and the lateral arch (120) of the foot; and a toe ball support part (100) which supports a ball of the foot (26A) and a little toe ball (34A) while maintaining the inner longitudinal arch (121), the outer longitudinal arch (122) and the lateral arch (120) of the calcaneus front support convex part (90), wherein the toe ball support part (100) is provided with a front part (110) of the insole which is thinner than the toe ball support part (100) in front of the toe ball support part (100).

Description

Shoe-pad for shoes

Technical Field

The invention relates to insoles for shoes.

Background

Conventionally, the following structure is known: the shoe insole has a calcaneal anterior support protrusion for supporting a calcaneal anterior portion from the sole of a foot (see, for example, patent document 1).

In patent document 1, the calcaneus is stabilized by the calcaneus front supporting convex portion, and the foot arch is supported with good balance by maintaining a natural shape. The conventional shoe insole is easy to balance feet, is easy to generate propelling force during walking and running, and realizes both stability and sports.

Documents of the prior art

Patent document

Patent document 1: international publication No. 2014/203399

Disclosure of Invention

Problems to be solved by the invention

However, the conventional insole described above can achieve both stability and exercise at the same time, but has a problem that it is difficult to obtain an exercise effect during walking.

Accordingly, an object of the present invention is to provide a shoe insole which ensures stability and mobility and easily provides a sport effect.

Means for solving the problems

The shoe insole of the present invention is characterized by comprising: a calcaneus anterior support protrusion that abuts against a calcaneus anterior portion of a foot to maintain a medial longitudinal arch, a lateral longitudinal arch, and a lateral arch of the foot; and a toe support portion for supporting a ball of the foot and a ball of the little toe while the heel front support convex portion maintains the inner longitudinal arch, the outer longitudinal arch, and the lateral arch, wherein the toe support portion has a front portion thinner than the toe support portion in front of the toe support portion.

According to the present invention, since the ball support supports the ball of the foot and the ball of the little toe while the calcaneus anterior support convex portion maintains the medial longitudinal arch, the lateral longitudinal arch, and the lateral arch of the foot, the toe support is in a state in which the toe constraint on the front side of the proximal phalanges 1 to 5 of the foot is released while the arch of the foot is maintained. Therefore, during walking or running, the toes are free while the arch is maintained, and a walking operation can be performed in which the toes grip the ground.

Further, according to the present invention, since the front part of the insole is thinner than the ball support part, the degree of freedom of the toes is higher, the walking motion of catching the ground with the toes can be easily performed, and the exercise effect can be improved.

Effects of the invention

According to the present invention, the shape of the arch can be maintained, stability and mobility of the body can be ensured, and the movement of grasping the ground with the toes can be easily performed, thereby improving the exercise effect.

Drawings

Fig. 1 is a perspective view showing an insole of an embodiment of the present invention.

Figure 2 is a bottom view showing the insole overlapping the bones of the foot.

Fig. 3 is a transverse sectional view showing an insole, fig. 3 (a) is a sectional view of S0-S0 of fig. 2, fig. 3 (B) is a sectional view of S1-S1 of fig. 2, fig. 3 (C) is a sectional view of S2-S2 of fig. 2, fig. 3 (D) is a sectional view of S3-S3 of fig. 2, fig. 3 (E) is a sectional view of S4-S4 of fig. 2, fig. 3 (F) is a sectional view of S5-S5 of fig. 2, fig. 3 (G) is a sectional view of S6-S6 of fig. 2, and fig. 3 (H) is a sectional view of S7-S7 of fig. 2.

Fig. 4 is a longitudinal sectional view showing an insole, fig. 4 (a) is a sectional view of S10-S10 of fig. 2, fig. 4 (B) is a sectional view of S11-S11 of fig. 2, fig. 4 (C) is a sectional view of S12-S12 of fig. 2, fig. 4 (D) is a sectional view of S13-S13 of fig. 2, and fig. 4 (E) is a sectional view of S14-S14 of fig. 2.

Fig. 5 is an explanatory view of the arch.

Fig. 6 is a longitudinal sectional view showing the relation of the footwear insole to the foot, the footwear insole being identical to the sectional view of S13-S13 of fig. 2.

Detailed Description

Embodiments of the present invention will be described below with reference to the drawings.

In the drawings of the present embodiment, one insole 1 and the bones of the foot are shown on the left and right. The other insole 1 is a mirror image of the foot skeleton.

Fig. 1 is a perspective view showing an insole 1 of the present embodiment.

The insole (insole for footwear) 1 has an insole body 160, and the insole body 160 has a shape following the inner contour of the footwear in a plan view, and has an outer edge contour 70 housed inside the footwear. By matching the outer edge contour 70 to the inner contour of the shoe, the insole 1 will fit in the shoe in a defined position when the insole 1 is inserted. Since the shape of the foot of the person using the insole 1 is not constant but is individual, the size of the entire insole 1 is selected according to the size of the foot of the user.

Fig. 2 is a bottom view showing the insole 1 overlapped with the bones of the foot. This figure is a view from below, it being intended to note that the bones coincide with each other, and therefore, a part of the bones is occluded. The bones overlap differently in a top view from the surface of the foot as compared to the bottom view of fig. 2.

As shown in fig. 2, the skeletal structure 10 of the foot is composed of a calcaneus 12, a talus 14, a navicular 16, a

cuboid

18, 1 st to 3 rd

cuneiform bones

20, 22, 24, 1 st to 5 th

metatarsal bones

26, 28, 30, 32, 34, 1 st to 5 th

proximal phalanges

36, 38, 40, 42, 44, 2 nd to 5 th

middle phalanges

46, 48, 50, 52, and 1 st to 5 th

distal phalanges

54, 56, 58, 60, 62. The tip portions of the 1 st to 5 th

metatarsal bones

26, 28, 30, 32, 34 are the 1 st to 5 th metatarsal heads 26A (also referred to as the ball of the thumb 26A.), 28A, 30A, 32A, 34A (also referred to as the ball of the little toe 34A.). The stepped portion located at the front of the calcaneus 12 is the anterior portion of the calcaneus (also known as the calcaneal tuberosity) 12A. In fig. 2, only the scaphoid 16 is shown by a broken line as a portion which is blocked by overlapping bones.

In this structure, as shown in fig. 1 and 2, a cuboid supporting convex portion 80 and a calcaneus front supporting convex portion 90 constituting the convex portion 2 are formed on the front surface (upper surface) 1A of the insole body 160. The cuboid supporting convex portion 80 is provided at a portion corresponding to the cuboid 18, and the calcaneal front supporting convex portion 90 is provided at a portion corresponding to the calcaneal tuberosity 12A. The cuboid supporting convex portion 80 and the calcaneus front supporting convex portion 90 are formed solid.

The calcaneus front supporting convex portion 90 is arranged on the cuboid supporting convex portion 80, and the surface of the calcaneus front supporting convex portion 90 is overlapped with the surface of the cuboid supporting convex portion 80 to form a convex portion 2. The cuboid supporting convex portion 80 and the calcaneus front supporting convex portion 90 may be integral with each other or may be separate, and may be formed separately from the flat insole. In fig. 2, the calcaneus anterior supporting convex portion 90 is schematically illustrated together with contour lines showing the height of the calcaneus anterior supporting convex portion 90.

A ball of the foot support portion (hereinafter referred to as a bulge) 100 of the 1 st metatarsal head (ball of the thumb) 26A and the 2 nd to 5 th metatarsal heads (balls of the little toes) 28A to 34A of the support foot 6 is formed on the back surface (lower surface) 1B of the insole body 160. The bulging portion 100 bulges downward from the back surface (lower surface) 1B of the insole body 160. The front edge of the bulge 100 extends on a line connecting the 1 st proximal phalanx 36 to the 5 th proximal phalanx 44 in a bottom view. The insole front part 110 of the insole main body 160 is formed in front of the bulge part 100, and the thickness of the insole front part 110 is thinner than that of the bulge part 100.

Fig. 3 is a transverse sectional view showing the footwear insole 1, and fig. 4 is a longitudinal sectional view showing the footwear insole 1. In FIGS. 3 and 4, (S0-S0) - (S7-S7), (S10-S10) - (S14-S14) correspond to (S0-S0) - (S7-S7), (S10-S10) - (S14-S14) in FIG. 2.

Section S0-S0 is a section that traverses near the 1 st distal phalange 54 and the 2 nd to 3

rd middle phalanges

46, 48, where the insole body 160, i.e., the insole front portion 110, is flat.

The cross sections S1-S1 are cross sections that cross the vicinities of the 1 st to 4 th proximal phalanges 36 to 42 and the 5 th distal phalange 62, and the bulging portion 100 is provided on the back surface 1B of the insole body 160.

A ball part 103 of a ball 26A of the supporting foot and other ball parts 104 supporting the 2 nd to 4 th metatarsal heads 28A to 32A and the ball 34A are formed on the bulging part 100, and a V-shaped concave part 105 is formed between the ball part 103 and the other ball parts 104. The thickness of the outer peripheral portion 102 gradually decreases and inclines upward as it approaches the outside of the bulging portion 100.

Sections S2-S2 are sections that traverse the 1 st metatarsal head 26A and the 5 th metatarsal head 34A. The insole body 160 at this portion has a flat surface portion 100A on the front surface 1A and a bulging portion 100 bulging downward on the rear surface 1B. The bulging portion 100 has a flat main body portion 101 and an outer peripheral portion 102 having a gradually decreasing thickness.

The sections S3-S3 are sections that cross the metatarsals 26-34. The insole body 160 at this portion has a flat surface portion 100A on the front surface 1A and a bulging portion 100 on the back surface 1B. A circular arc recess 106 is formed in the rear edge portion of the bulging portion 100, and the widthwise central portion of the circular arc recess 106 is recessed forward in a circular arc shape in a bottom view.

The cross sections S4 to S4 correspond to the transverse arches crossing the metatarsals 26 to 34, and the thickness of the insole body 160 is thicker at the portion corresponding to the arch of the foot, and gradually decreases as it inclines downward toward the right foot lateral front side. Furthermore, thinned

portions

72, 74 are formed on both sides of the flat portion on the back surfaces of the left, right, inner and outer sides, and slight deformation toward the left and right in the cross section of S4-S4 can be tolerated.

The section from S5 to S5 corresponds to the cuboid 18, and the insole body 160 has the cuboid supporting protrusions 80 of the maximum thickness. The front surface 80A of the cuboid supporting convex portion 80 including the portion 3 (fig. 2) corresponding to the navicular 16 is inclined downward and gradually decreases in thickness as it goes from the portion corresponding to the cuboid 18 toward the left and right side edges 76. In section S5-S5, insole body 160 has raised rim portion 78 at the outermost edge.

The sections S6-S6 are the locations that cross the calcaneal tuberosity 12A and correspond to the posterior termination of the longitudinal arch. The insole body 160 at this portion has the calcaneus front supporting convex portion 90 having the largest thickness, and the front surface 90A of the calcaneus front supporting convex portion 90 and the portion 3 (fig. 2) including the scaphoid 16 are inclined downward and gradually decrease in thickness as going from the portion corresponding to the calcaneus tuberosity 12A toward the left and right side edges 76.

The cross sections S7-S7 traverse the posterior portion of the calcaneus 12 and correspond to the posterior termination of the longitudinal arch. The insole body 160 supports the foot so that the front surface 1A side thereof is relatively flat so as to correspond to a general foot. The front surface 1A side of the insole body 160 is inclined upward toward both sides, and has a gradually increasing thickness and a raised edge portion 78 at the outermost edge. Thinned

portions

72, 74 are formed on the back of the left, right, inner and outer sides to allow for some deformation to the left and right at sections S7-S7.

The cuneiform bones 20 to 24 and the scaphoid bone 16 constituting the medial longitudinal arch are elevated at the front surface at the sections S10 to S10 and S11 to S11.

The insole 1 of the present invention supports not only the portions corresponding to the cuboid 18 and calcaneal tuberosity 12A but also other portions in consideration of stability. However, it is not a structure that constrains the motion of the foot. Therefore, in this cross section, the thinned portion 72 is provided at the insole main body 160 so as to be capable of sinking inside the cuboid supporting convex portion 80. Therefore, even when a force acts on the portions corresponding to the cuneiform bones 20 to 24 and the navicular bone 16, the insole body 160 is deformed by the thinned portion 72, and the stress is relaxed.

The sections S11-S11-S13-S13 are the portions corresponding to the cuboid 18, and have the cuboid supporting projections 80 of the maximum thickness. The front surface 80A of the cuboid supporting convex portion 80 is inclined downward from the portion corresponding to the cuboid 18 toward the front and rear so as to gradually decrease in thickness. In other words, when the foot is placed in the shoe to which the insole 1 is attached and the foot is in the standing posture, the cuboid supporting protrusions 80 corresponding to the cuboid bones 18 apply the maximum stress to the sole surface. The insole 1 is configured such that the stress gradually decreases as it goes forward and backward from the cuboid supporting convex portion 80.

In addition, as the bottom surface side of the insole 1, the rear surface side of the cuboid supporting convex portion 80, which is a portion corresponding to the cuboid 18, of the portion contacting the shoe is flat. According to this structure, a reaction force always acts on the cuboid 18 from the shoe.

The sections S12-S12 and S13-S13 are also the locations corresponding to the calcaneal tuberosity 12A, the anterior calcaneus supporting projection 90 having the greatest thickness. The front surface 90A of the calcaneal anterior support projection 90 gradually decreases in thickness as it slopes downward from the site corresponding to the calcaneal tuberosity 12A toward the anterior-posterior direction. In other words, the insole 1 is configured such that the stress gradually decreases as it goes forward and backward from the calcaneus front supporting convex portion 90. The rear side of the calcaneus anterior support convex portion 90, which is a portion corresponding to the calcaneus tuberosity 12A, of the portion that contacts the shoe, is flat. With this structure, a reaction force always acts from the shoe to the calcaneal tuberosity 12A.

The cross-sections S14-S14 are elevated frontally at the location corresponding to the 5 th metatarsal 34 that constitutes the lateral longitudinal arch.

This portion is located outside the cuboid supporting convex portion 80 and the calcaneus anterior supporting convex portion 90, and has a slight bulge in consideration of stability. However, it is not a structure that constrains the motion of the foot. Thinned portions 74 are provided at portions corresponding to the outer longitudinal arches, and the insole 1 is also depressed at the outer sides of the cuboid supporting convex portions 80 and the calcaneus front supporting convex portions 90. When a force acts on the 5 th metatarsal 34 of the lateral longitudinal arch, the insole body 160 is also deformed by the thinned portion 74, thereby relaxing the stress.

In this structure, when the insole 1 is assembled, the cuboid 18 is supported with the cuboid supporting convex portion 80 as a vertex. Since the cuboid 18 is supported from below, the foot is allowed to evert in the inward rotational motion and evert in the outward rotational motion with the cuboid 18 as a fulcrum while maintaining a neutral position (neutral) with respect to the left, right, front, and rear.

Thus, the insole 1 does not interfere with the normal movement of the joint, and the necessity of compensation for other parts is small, and the center of gravity is easily moved forward, backward, left, and right. That is, the shoe insole 1 does not fixedly restrain the foot like plaster, but the front surface is inclined downward in the radial direction from the cuboid supporting convex portion 80 to relax the stress, and the thinned

portions

72, 74 are provided to easily deform the shoe insole 1 itself, thereby allowing the movement. The insole 1 is configured to support a portion corresponding to the cuboid 18 from below, and can smoothly guide the inward rolling motion and the outward rolling motion while correcting and preventing excessive deformation of the bones of the foot.

Fig. 5 shows the arch of the foot.

An arch (schematically shown with dotted lines) 119 is formed in the sole of a person's foot if it is in a natural state while walking or running.

The arch 119 includes a medial longitudinal arch 121 and a lateral longitudinal arch 122 formed in the longitudinal direction of the foot, and a lateral arch 120 formed in the lateral direction of the foot. As shown in FIG. 2, the transverse arch 120 is formed across the 1 st to 5 th metatarsal bones 26 to 34. The medial longitudinal arch 121 is formed to span between the calcaneus 12, the talus 14, the scaphoid 16, the 3 cuneiform bones 20 to 24, and the 1 st to 3 rd metatarsals 26 to 30. The lateral longitudinal arch 122 is formed across the calcaneus 12, the cuboid 18, and the 4 th to 5

th metatarsals

32, 34.

Fig. 6 is a view showing the principle that the user's body weight F acts on the calcaneus bone 12 from the tibia 68 via the talus bone 14 when the insole 1 is assembled.

The calcaneus 12 becomes the main part supporting the weight F of the user. In the calcaneus 12, the calcaneus front upper end 12B serves as a force application point P1, and the calcaneus lower end (calcaneus rear portion) 12C serves as a fulcrum P2, so that a moment about the fulcrum P2 acts on the calcaneus 12.

In this configuration, the calcaneus anterior support convex portion 90 supports the calcaneus tuberosity 12A substantially directly below the force application point P1, thereby stabilizing the calcaneus 12. Since the calcaneus tuberosity 12A is spaced apart from the calcaneus lower end 12C as the fulcrum P2, the calcaneus 12 can be supported efficiently with a small force by providing the calcaneus anterior supporting projection 90 at a location corresponding to the calcaneus tuberosity 12A.

The user's body weight F also acts on the cuboid 18 via the calcaneus 12. Since the 1 st to 5 th metatarsal heads 26A to 34A of the cuboid 18 serve as the fulcrum P3, a moment about the fulcrum P3 acts on the cuboid 18.

In the present structure, the cuboid supporting convex portion 80 can stabilize the cuboid 18 by supporting the cuboid 18 substantially directly below the force application point P1.

Further, since the cuboid 18 is spaced apart from the 1 st to 5 th metatarsal heads 26A to 34A serving as the fulcrums P3, the cuboid 18 can be supported efficiently with a small force by providing the cuboid supporting projection 80 at a portion corresponding to the cuboid 18.

However, it is difficult to stabilize the calcaneus 12 by simply supporting the cuboid 18, and there are cases where deformation occurs in the cuboid 18, the calcaneus 12, and the joint (calcaneal-cuboid joint).

The calcaneus 12 constitutes both the inner longitudinal arch 121 and the outer longitudinal arch 122, and therefore, when the calcaneus 12 is unstable, the longitudinal arch cannot be maintained in a normal position. Specifically, as shown in fig. 6, the calcaneal tuberosity 12A of the anterior portion of the calcaneus 12 is located at a position overlapping with a long plantar ligament 64 connecting the middle portion of the calcaneus 12 and the 2 nd to 5 th metatarsals 28 to 34. The long plantar ligament 64 serves to maintain the longitudinal arch.

In this configuration, the calcaneus tuberosity 12A is supported by the calcaneus anterior supporting convex portion 90 via the plantar long ligament 64, and therefore, the calcaneus 12 is stabilized, the deformation of the calcaneal cuboid joint can be reduced, and the longitudinal arch can be positioned at a normal position. This allows the longitudinal bow to function more effectively as a spring. In particular, at night, the function of the long plantar ligament 64 to maintain the longitudinal arch is reduced as compared with the daytime, and therefore, it is effective to support the long plantar ligament 64. The anterior calcaneal support projection 90 includes a region 4 corresponding to the calcaneal tuberosity 12A in a position overlapping the plantar long ligament 64.

The anterior calcaneus supporting protrusion 90 not only supports the long plantar ligament 64 to promote passive stabilization of the arch, but also supports the stopping tendon 66 of the long fibula muscle, which is important for active stabilization of the lateral longitudinal arch, via the long plantar ligament 64. Here, passive stabilization is achieved by ligaments and active stabilization by muscles (tendons). As shown in fig. 2, the resting tendon 66 of the fibular longus muscle, after wrapping around the cuboid 18, crosses the sole of the foot from the lateral edge and rests on the bottom of the 1 st cuneiform 20 and the 1 st metatarsal 26. Part of the calcaneus front support protrusion 90 is located below the cuboid 18, and supports the navicular 16 via the cuboid 18. This indirectly supports the posterior tibialis tendon 67, which is a main part of the active stabilization structure of the medial longitudinal arch.

Fascia of the tendon 67 for stopping the tibialis posterior is exposed to the 1 st to 3 rd cuneiform bones 20 to 24, the 2 nd to 3

rd metatarsals

28 and 30, and the scaphoid 16. The transverse arch and the longitudinal arch are maintained by the oblique orientation of the peroneal longus muscle, the tibialis posterior muscle and both muscles.

Furthermore, the calcaneus 12 also constitutes a joint, and therefore, only fixed support interferes with the motor function, and therefore, it is also necessary to allow movement.

The insole body 160 is configured such that the front surface thereof is inclined downward in the radial direction about the cuboid supporting convex portion 80 to relax the stress, and therefore, the movement of the joint formed by the calcaneus 12 can be allowed. More specifically, the anterior calcaneus supporting projection 90 is formed of a relatively soft material, and the portion of the anterior calcaneus supporting projection 90 having the largest thickness may sag due to the weight of the user and support the calcaneus tuberosity 12A. By sinking the calcaneus front supporting convex portion 90, the insole 1 is inclined downward in the front-rear left-right radial direction centering on the cuboid supporting convex portion 80, supports the foot centering on the cuboid 18, and allows the foot to move centering on the cuboid supporting convex portion 80.

In this configuration, the calcaneal anterior support projection 90 abuts the calcaneal tuberosity (calcaneal anterior of the foot) 12A, and maintains the inner longitudinal arch 121, the outer longitudinal arch 122, and the lateral arch 120 of the foot.

The calcaneus 12 can be stably supported by the anterior calcaneus supporting protrusion 90, and the lateral arch 120, the medial longitudinal arch 121, and the lateral longitudinal arch 122 of the sole can be maintained in natural shapes, thereby improving the stability and the mobility of the foot.

In this state, that is, in a state where the calcaneus anterior support convex portion 90 maintains the inner longitudinal arch 121, the outer longitudinal arch 122, and the lateral arch 120, the bulging portion 100 is configured to support the 1 st metatarsal head (ball of the thumb) 26A and the 2 nd to 5 th metatarsal heads (balls of the little toe) 28A to 34A of the foot.

In this configuration, as shown in fig. 6, the bulging portion 100 is brought into contact with the midsole 7 of the shoe, whereby the surface portion 100A of the bulging portion 100 is held upward, and the 1 st to 5 th metatarsal heads 26A to 34A such as the ball of the thumb 26A and the ball of the little toe 34A, that is, the base side of the toes are held upward by the surface portion 100A.

Therefore, the toe restraint is released while the calcaneus front supporting projection 90 maintains the arch.

In general, the heel side of the midsole of the shoe is higher than the toe side and lower than the toe side, which makes it easy to walk, but since the toe side is lower, a force is easily applied to the toe side when a body weight is applied, and the entire toe is easily pressed against the midsole 7 of the shoe. Therefore, the toes are difficult to move, sometimes hindering the natural movement of the toes, and the toes are difficult to be stimulated by the natural movement.

In contrast, in the present configuration, since the bulge portion 100 holds the ball of thumb 26A and the ball of little toe 34A at a high position with respect to the midsole 7 of the shoe, the foot supported by the insole 1 is easily leveled in the shoe, the weight is hardly applied to the toe side on the front side of the fulcrum P3 (see fig. 6), and the toe is easily moved.

In this structure, insole body 160 has calcaneus anterior support protrusion 90. Therefore, the foot top side becomes higher while the arch parts 120 to 122 maintain the natural shapes, and the user of the insole 1 can easily move so that the toes naturally catch the ground when walking or running. Therefore, in the case of a slope or ascending and descending stairs, a force is easily applied to the toe side, and the toes are easily stimulated by an ideal movement. By using the insole 1 of this configuration, the decrease in the body function of the foot is easily suppressed.

When the user walks with the shoe pad 1 having the above structure, the user can train the toes. In particular, in the present configuration, since the shoe insole 1 further has the cuboid supporting convex portion 80, the skeletal balance of the foot is adjusted, the stability and the mobility are further improved, and the training is easier.

In this structure, the insole front part 110 is thinner than the bulge part 100, and therefore, the degree of freedom of the toes in front of the 1 st to 5 th distal phalanges 54 to 62 of the foot is higher.

When the insole front part 110 on which the so-called toe including the proximal phalanges 36 to 44, the middle phalanges 46 to 52, and the distal phalanges 54 to 62 in fig. 2 is placed is softer than the bulge part 100 on which the ball of thumb 26A and the ball of little toe 34A are placed, the toe-catching operation can be performed more easily.

In the present embodiment, since the insole front portion 110 is thinner and softer than the bulging portion 100, the toes can be moved easily.

Therefore, the walking operation such as gripping with the toes can be easily performed, and the exercise effect can be improved. It is possible to improve the exercise effect while maintaining the shape of the arch of the foot and ensuring stability and mobility of the body.

In this configuration, since the bulge portion 100 is formed on the rear surface 1B, a gap 111 is formed between a portion near the bulge portion 100 and the midsole 7 of the shoe, as shown in fig. 6. Therefore, the shoe pad front portion 110 of the shoe pad 1 is easily pushed into the gap 111 from above. Further, since the bulge portion 100 is formed with the V-shaped concave portion 105, the ball portion 103 and the other ball portion 104 are thin, and the front part 110 of the insole can be easily pushed into the gap 111 with the thumb.

As described above, in the present embodiment, the toes can be easily bent and can be easily urged, and the operation of grasping the ground surface with the toes can be easily performed.

Further, since the flat surface portion 100A of the bulging portion 100 is in contact with the sole of the foot, the movement of the foot is less likely to be hindered than in the case where the uneven shape is in contact with the sole of the foot.

On the other hand, since the movement of the foot is not easily hindered, the positions of the ball of thumb 26A and the ball of little toe 34A may be shifted during walking or sports, but the bulging portion 100 is formed wide in the front-rear direction, so the bulging portion 100 can support the ball of thumb 26A and the ball of little toe 34A.

As described above, the shoe insole 1 of the present embodiment includes: a calcaneal anterior support protrusion 90 that abuts the calcaneal anterior portion 12A of the foot to maintain the medial longitudinal arch 121, the lateral longitudinal arch 122, and the lateral arch 120 of the foot; and a bulge part 100 for supporting the ball 26A and the ball 34A of the foot in a state where the heel front support convex part 90 maintains the inner longitudinal arch 121, the outer longitudinal arch 122, and the lateral arch 120, and having a sole front part 110 thinner than the bulge part 100 in front of the bulge part 100. Therefore, the shape of the arch parts 120-122 is maintained in a natural state, stability and mobility of the body are ensured, and the toes can be easily caught on the ground, so that the toes can be trained.

In the present embodiment, the front surface 1A is flat from the insole front portion 110 to the bulging portion 100, and the bulging portion 100 bulges downward. Therefore, the bulging portion 100 is in contact with the midsole 7 of the shoe, and the surface portion 100A constituting the front surface 1A of the bulging portion 100 is in contact with the sole of the foot with a flat surface, so that the toes can be moved easily.

In the present embodiment, the front edge portion of the bulge portion 100 extends on a line connecting the 1 st proximal phalanx 36 to the 5 th proximal phalanx 44 of the foot, and a V-shaped recess 105 is formed in the front edge portion between the 1 st proximal phalanx 36 and the 2 nd proximal phalanx 38, and the V-shaped recess 105 is recessed rearward. Therefore, the parts of insole 1 corresponding to proximal phalanx 1 36 and distal phalanx 1, which are the hallux, can be easily pushed downward, and the hallux can easily grip the ground.

In the present embodiment, a circular-arc concave portion 106 is formed at the rear edge portion of the bulging portion 100, and the central portion in the width direction of the circular-arc concave portion 106 is recessed forward. Therefore, the boundary of the bulge portion 100 is not easily felt by the sole of the foot, and discomfort can be reduced.

In the present embodiment, the thickness of the outer peripheral portion of the bulging portion 100 is gradually reduced. Therefore, the outer peripheral portion 102 of the bulging portion 100 can be gradually deformed according to the body weight, and thus the feeling of strangeness of the foot can be reduced.

In the present embodiment, the cuboid supporting convex portion 80 is arranged to overlap the calcaneus front supporting convex portion 90, and the cuboid supporting convex portion 80, including the portion corresponding to the navicular 16, is gradually reduced in thickness as it is inclined downward from the cuboid 18 of the foot toward both left and right side edges, and is gradually reduced in thickness as it is inclined downward from the portion corresponding to the cuboid 18 toward the front and rear, and is gradually reduced in thickness in the front, rear, left and right radiation directions. Therefore, since the cuboid supporting convex portion 80 is provided, the cuboid 18 and the calcaneus 12 are stabilized in a state where the arch shape of the calcaneus joint including the cuboid 18 and the calcaneus 12 is maintained and the movement of the foot is allowed, and therefore, the deformation of the calcaneus cuboid joint is reduced, and the entire heel bone including the cuboid 18 and the calcaneus 12 is stabilized in a natural state. As a result, the joints of the foot move freely, and thus the function of the foot can be improved.

However, the above embodiment is an embodiment of the present invention, and it goes without saying that the embodiment can be appropriately modified within a range not departing from the gist of the present invention.

For example, although the insole body 160 is integrally molded in the above embodiment, the convex portion 2 and the bulging portion 100, which are separate bodies, may be detachably attached to a flat insole material. Further, by forming the insole body 160 into a plurality of layers and fitting the convex portion 2 and the bulge portion 100 to the intermediate layer, unevenness can be formed on the surface material.

Although the cuboid supporting convex portions 80, the calcaneus front supporting convex portions 90, and the bulging portions 100 are formed in a solid manner, the interiors of the

front surfaces

80A, 90A, 101 of the cuboid supporting convex portions 80, the calcaneus front supporting convex portions 90, and the bulging portions 100 may be hollow.

The shoe insole of the present invention is intended to improve a standing posture and improve a sports function, and is widely applicable to various shoes such as shoes for daily use, sports shoes for which functionality is sought such as skiing and soccer, medical shoes for treatment and rehabilitation, and training shoes for health improvement, in addition to shoes for daily use.

Description of the reference symbols

1: insoles (insoles for shoes);

1A: front side (upper surface);

12A: calcaneal tubercle (anterior calcaneus);

18: a cuboid bone;

26A: a ball of the thumb;

34A: a little toe ball;

36: 1 proximal phalanx;

38: proximal phalanx 2;

44: the 5 th proximal phalanx;

76: two side edges;

80: a cuboid supporting convex portion;

90: a calcaneus anterior support projection;

100: a bulging portion (a toe ball support portion);

102: a peripheral portion;

110: the front part of the insole;

120: transverse bow;

121: an inner longitudinal arch;

122: the lateral longitudinal arch.

Claims

1. An insole for shoes is characterized in that,

the insole for shoes comprises:

a calcaneus anterior support protrusion that abuts against a calcaneus anterior portion of a foot to maintain a medial longitudinal arch, a lateral longitudinal arch, and a lateral arch of the foot; and

a ball support portion for supporting a ball of the foot and a ball of the little toe while the inner longitudinal arch, the outer longitudinal arch and the lateral arch are maintained by the calcaneus anterior support convex portion,

the front part of the insole is thinner than the toe ball supporting part in front of the toe ball supporting part.

2. The insole for shoes as claimed in claim 1,

the upper surface from the front of the insole to the ball support is flat, and the ball support bulges downward.

3. The insole for shoes according to claim 1 or 2,

the toe ball support portion has a front edge portion extending on a line connecting the 1 st proximal phalanx to the 5 th proximal phalanx of the foot, and a front edge portion between the 1 st proximal phalanx and the 2 nd proximal phalanx is recessed rearward.

4. The insole for shoes according to any one of claims 1 to 3,

the widthwise central portion of the rear edge portion of the toe support portion is recessed forward.

5. The insole for shoes according to any one of claims 1 to 4,

the thickness of the outer peripheral portion of the toe ball support portion is gradually reduced.

6. The insole for shoes according to any one of claims 1 to 5,

and a cuboid supporting convex portion arranged to overlap the calcaneus front supporting convex portion, the cuboid supporting convex portion including a portion corresponding to the navicular bone gradually decreasing in thickness as it slopes downward from the cuboid bone of the foot toward both left and right side edges, and gradually decreasing in thickness as it slopes downward from the portion corresponding to the cuboid bone toward the front and back, the thickness gradually decreasing in the front and back and left and right radiation directions.