TWI678977B - Shoe insole - Google Patents

Abstract

The present invention provides a shoe insole that can easily perform actions such as grasping the ground with toes while maintaining stability and sportiness. The insole 1 for shoes includes a calcaneus front support projection 90 which abuts the anterior calcaneus portion 12A of the foot in order to maintain the medial longitudinal arch 121, lateral longitudinal arch 122, and lateral arch 120 of the foot; and The toe ball support portion 100 supporting the thumb ball 26A and the small toe ball 34A supporting the foot in a state where the medial longitudinal arch 121, lateral longitudinal arch 122, and lateral arch 120 are maintained by the aforementioned front calcaneal support projection 90. A toe ball support portion 100 is provided in front of the toe ball support portion 100 with an insole front portion 110 that is thinner than the toe ball support portion 100.

Description

Insoles for shoes

The invention relates to an insole for shoes.

Conventionally, there has been known a structure in which a shoe inner sole is provided with a calcaneus front support convex portion for supporting a front calcaneus from a sole (for example, refer to Patent Document 1).

In Patent Document 1, the calcaneus is stabilized by using the front calcaneal support convex portion, and the arch of the sole of the foot is maintained in a natural shape to support the foot in a balanced manner. The conventional insole system for shoes can easily achieve foot balance, and it is easy to generate propulsion force during walking and traveling, so as to simultaneously achieve stability and sportiness.

[Prior technical literature] [Patent Literature]

[Patent Document 1] International Publication No. 2014/203399

However, although the above-mentioned conventional insole can seek stability and sportiness at the same time, there is a problem that it is not easy to obtain the exercise effect when walking. question.

Therefore, an object of the present invention is to provide an insole for shoes that can ensure stability and sportiness and can easily obtain a sporting effect.

The insole for footwear according to the present invention includes a calcaneus front support protrusion that abuts the front of the calcaneus of the foot in order to maintain the medial longitudinal arch, lateral longitudinal arch, and transverse arch of the foot; and the calcaneus The front support convex portion maintains the medial longitudinal arch, lateral longitudinal arch, and lateral arch, and the toe ball support portions supporting the toe ball and the small toe ball of the foot have a thickness in front of the toe ball support portion. A front portion of the insole that is thinner than the toe ball support portion.

According to the present invention, in a state in which the front calcaneal support convex portion maintains the medial longitudinal arch, lateral longitudinal arch, and lateral arch of the foot, the toe ball support part and the toe ball are supported by the toe ball support part. In a state where the arch of the foot is maintained, the toes in front of the 1st to 5th basal bones of the foot are free. Therefore, when walking or traveling, the toes are in a free state while maintaining the arch of the foot, so that the walking action of grasping the ground with the toes can be realized.

In addition, according to the present invention, since the thickness of the front portion of the insole is thinner than the toe ball support portion, the degree of freedom of the toes is further improved, a walking action such as grasping the ground with the toes can be easily performed, and the exercise effect can be improved .

According to the present invention, the shape of the soles of the feet can be maintained to ensure the stability and movement of the body, and at the same time, it can easily perform the action of grasping the ground with the toes to improve the exercise effect.

1‧‧‧ insoles (insoles for shoes)

1A‧‧‧ surface (top surface)

1B‧‧‧Inner surface (lower surface)

2‧‧‧ convex

4‧‧‧ parts

7‧‧‧ midsole of shoes

10‧‧‧ Foot bone structure

12‧‧‧ calcaneus

12A‧‧‧ Calcaneal tuberosity (front of calcaneus)

12B‧‧‧ Upper anterior side of calcaneus

12C‧‧‧ Lower calcaneus (back of calcaneus)

14‧‧‧ talus

16‧‧‧ scaphoid

18‧‧‧ dice bone

20, 22, 24‧‧‧‧ 1st to 3rd wedge bone

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

26A‧‧‧ Thumb ball (1st metatarsal head)

28A, 30A, 32A‧‧‧ 2nd to 4th metatarsal heads

34A‧‧‧small toe ball (5th metatarsal head)

36‧‧‧ 1st basal bone

38‧‧‧ 2nd basal bone

40‧‧‧ 3rd basal bone

42‧‧‧ 4th basal bone

44‧‧‧ 5th basal bone

46, 48, 50, 52‧‧‧ 2nd to 5th middle bones

54, 56, 58, 60, 62‧‧‧ 1st to 5th end bones

64‧‧‧ Long plantar ligament

66‧‧‧ Stop tendon

68‧‧‧ tibia

72, 74‧‧‧ thickness cut

76‧‧‧ side edges

78‧‧‧ Raised margin

80‧‧‧ Dice Bone Supporting Convex

80A, 90A, 101‧‧‧ surface

90‧‧‧ Anterior calcaneus support protrusion

100‧‧‧ Bulging part (toe ball support part)

100A‧‧‧Surface

102‧‧‧ Peripheral Department

103‧‧‧ Ball of the toe

104‧‧‧ He Toe Ball

105‧‧‧V-shaped recess

106‧‧‧ Arc recess

110‧‧‧ insole front

111‧‧‧ Generate gap

119‧‧‧ Arch

120‧‧‧ transverse arch

121‧‧‧ medial longitudinal arch

122‧‧‧ Lateral longitudinal arch

160‧‧‧ Insole body

F‧‧‧ weight

P1‧‧‧force point

P2, P3‧‧‧ support points

FIG. 1 is a perspective view of an insole according to an embodiment of the present invention.

FIG. 2 is a bottom view of the insole with the bones of the feet superimposed.

Fig. 3 is a transverse sectional view of the insole, Fig. 3 (A) is a sectional view of S0-S0 in Fig. 2, and Fig. 3 (B) is a sectional view of S1-S1 in Fig. 2 and Fig. 3 ( (C) is a sectional view of S2-S2 in FIG. 2, FIG. 3 (D) is a sectional view of S3-S3 in FIG. 2, and FIG. 3 (E) is a sectional view of S4-S4 in FIG. 2 and FIG. 3 (F) is a sectional view of S5-S5 in FIG. 2, FIG. 3 (G) is a sectional view of S6-S6 in FIG. 2, and (3) is a sectional view of S7-S7 in FIG. 2.

Fig. 4 is a longitudinal sectional view of the insole, Fig. 4 (A) is a sectional view of S10-S10 in Fig. 2, and Fig. 4 (B) is a sectional view of S11-S11 in Fig. 2 and Fig. 4 ( C) is a sectional view of S12-S12 in FIG. 2, FIG. 4 (D) is a sectional view of S13-S13 in FIG. 2, and FIG. 4 (E) is a sectional view of S14-S14 in FIG. 2.

Fig. 5 is an explanatory diagram of the arch of the sole of the foot.

Fig. 6 is a longitudinal sectional view of the relationship between the insole and the foot, and the insole is the same as the S13-S13 sectional view of Fig. 2.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

The drawing of this embodiment shows the left insole 1 and the skeleton of the foot. The other insole 1 and the bones of the foot form mirror objects.

FIG. 1 is a perspective view of the insole 1 of this embodiment.

The insole (insole for footwear) 1 includes an insole body 160 that is shaped like the inner contour of a shoe when viewed from a plane, and has an outer edge profile 70 stored inside the shoe. By conforming the outer contour 70 to the inner contour of the shoe, the insole 1 can be installed in a predetermined position in the shoe when the insole 1 is inserted. The shape of the feet of a person using the insole 1 varies from person to person and is not fixed. Therefore, the overall size of the insole 1 can be selected according to the size of the user's feet.

FIG. 2 is a bottom view of the insole 1 with the bones of the feet superimposed. The diagram is a diagram viewed from below. Since the bones overlap each other, please note that part of the bones are not visible. The plan view seen from the front of the foot and the bottom view of Figure 2 differ in how bones overlap.

As shown in FIG. 2, the skeletal structure 10 of the foot is composed of the calcaneus 12, talus 14, scaphoid 16, dice 18, first to third wedge bones 20, 22, 24, and first to fifth metatarsals. 26, 28, 30, 32, 34, 1st to 5th basal bones 36, 38, 40, 42, 44, 2nd to 5th middle bones 46, 48, 50, 52, and 1 to 5 The terminal bone is composed of 54, 56, 58, 60, 62. The front ends of the 1st to 5th metatarsals 26, 28, 30, 32, and 34 are the first to 5th metatarsal heads 26A (also known as the toe bulb 26A), 28A, 30A, 32A, 34A (also called small Toe ball 34A). The segmental portion located at the front of the calcaneus 12 is the front of the calcaneus (also called the calcaneal tubercle) 12A. In addition, in FIG. 2, only the scaphoid bone 16 is not visible because the bones overlap with each other, and is indicated by a dotted line.

In this structure, as shown in FIGS. 1 and 2, a dice constituting the convex portion 2 is formed on the surface (upper surface) 1A of the insole body 160. The bone support convex portion 80 and the anterior calcaneus support convex portion 90. The dice bone supporting convex portion 80 is provided at a portion corresponding to the dice bone 18, and the calcaneus front supporting convex portion 90 is provided at a portion corresponding to the calcaneal nodule 12A. The middle of the dice bone supporting protrusion 80 and the calcaneus front supporting protrusion 90 is solid.

The front calcaneal support projection 90 is disposed above the dice bone support projection 80. The surface of the calcaneus front support projection 90 overlaps with the surface of the dice bone support projection 80 to form a convex portion 2. The dice bone supporting convex portion 80 and the calcaneus front supporting convex portion 90 may be integrated with each other, may be separate individuals, or may form different individuals from the flat insole. In addition, the calcaneus front support protrusion 90 in FIG. 2 is shown in a schematic diagram with contour lines showing the height of the calcaneus front support protrusion 90.

On the inner surface (lower surface) 1B of the insole body 160, the toes of the first metatarsal head (thumbular ball) 26A and the second to fifth metatarsal heads (small toe ball) 28A to 34A are formed to support the foot. A ball supporting portion (hereinafter referred to as a bulging portion) 100. The bulging portion 100 bulges downward from the inner surface (lower surface) 1B of the insole body 160. The bulged portion 100 is seen from the bottom surface, and the leading edge portion extends on a line connecting the first basal bone 36 to the fifth basal bone 44. The insole front portion 110 of the insole body 160 is formed in front of the bulged portion 100. The thickness of the insole front portion 110 is thinner than the thickness of the bulged portion 100.

FIG. 3 is a transverse sectional view of the insole 1, and FIG. 4 is a longitudinal sectional view of the insole 1. In addition, in Figures 3 and 4, (S0-S0) to (S7-S7), (S10-S10) to (S14-S14), and (S0-S0) to (S7- S7), (S10-S10) to (S14-S14).

The S0-S0 section shows the first terminal bone 54 and the second to third sections. A cross-section near the mid-bone 46, 48. The cross-section of the insole body 160, that is, the insole front portion 110, is flat.

The S1-S1 cross section is a cross section that crosses the vicinity of the first to fourth basal bones 36 to 42 and the fifth terminal bone 62, and includes a bulging portion 100 on the inner surface 1B of the insole body 160.

The bulged portion 100 is formed with a toe ball portion 103 for supporting a ball of the toe 26A of the foot, and other toe balls 104 supporting the second to fourth metatarsal heads 28A to 32A and the small toe ball 34A. A V-shaped recess 105 is formed between the ball portion 103 and the toe ball portion 104. The thickness of the outer peripheral portion 102 is inclined upward so as to gradually decrease toward the outside of the bulging portion 100.

The S2-S2 cross section is a cross section that crosses the first metatarsal head 26A and the fifth metatarsal head 34A. This part of the insole body 160 includes a flat surface portion 100A on the surface 1A, and a bulging portion 100 that bulges downward on the inner surface 1B. The bulged portion 100 includes a flat body portion 101 and an outer peripheral portion 102 having a decreasing thickness.

The S3-S3 section is a cross section of the sacrum 26 to 34. This part of the insole body 160 includes a flat surface portion 100A on the surface 1A and a bulging portion 100 on the inner surface 1B. The rear edge portion of the swollen portion 100 is formed with a circular arc recessed portion 106 which is recessed in a circular arc shape toward the front in the widthwise center as viewed from the bottom surface angle.

The S4-S4 cross section is equivalent to the transverse arch of the foot which crosses the metatarsal bone 26 to 34. The insole body 160 corresponds to a normal foot, and its thickness is thicker than the part that does not step on the ground. Side down to the outside of the right foot to reduce the thickness. In addition, the inner surfaces of the left and right inner and outer sides are Thick cutout portions 72 and 74 are formed on both sides of the flat portion, and it is allowed to deform slightly toward the left and right in the S4-S4 section.

The S5-S5 cross section is a portion corresponding to the dice bone 18. The insole body 160 is provided with the dice bone supporting protrusion 80 having the maximum thickness. The surface 80A of the dice bone supporting convex portion 80 is tilted downward from the portion corresponding to the dice bone 18 toward the left and right side edges 76 and includes the portion 3 corresponding to the scaphoid bone 16 (FIG. 2) to gradually decrease the thickness. The insole body 160 is in the S5-S5 cross section, and includes a raised edge portion 78 at the outermost edge.

The S6-S6 section is a cross section of the calcaneal tubercle 12A and corresponds to the rear end point of the longitudinal arch. This part of the insole body 160 includes a calcaneus front support protrusion 90 having a maximum thickness, and the surface 90A is from a portion corresponding to the calcaneal tubercle 12A toward the left and right side edges 76 and includes the scaphoid 16 Site 3 (Figure 2) tilts down to reduce the thickness.

The S7-S7 section is a cross section of the posterior portion of the calcaneus 12 and corresponds to the rear end point of the longitudinal arch. The insole body 160 corresponds to a normal foot. In order to support the heel, the surface 1A side is relatively flat. Further, the insole body 160 faces both sides, and the surface 1A side is tilted upward to gradually increase the thickness, and has a raised edge portion 78 at the outermost edge. Thickened cutouts 72 and 74 are formed on the inner surfaces of the left and right inner and outer sides, and allow slight deformation to the left and right in the S7-S7 section.

The S10-S10 section and the S11-S11 section are at positions corresponding to the wedge bones 20 to 24 and the scaphoid 16 constituting the medial longitudinal foot arch, and the surface is raised.

The insole 1 of the present invention is not limited to supporting the equivalent of dice bone 18 and heel The position of the bone nodule 12A, but also supports other parts in consideration of stability. However, it is not a configuration that restricts the movement of the foot. Therefore, in this section, the insole body 160 is provided with a thickness-removed portion 72, and can be sunk inside the dice bone supporting convex portion 80. Therefore, even when the force is applied to the parts corresponding to the wedge-shaped bones 20 to 24 and the scaphoid bone 16, the insole body 160 is deformed by the thickness cut-out portion 72 and the stress is relieved.

The sections S11-S11 to S13-S13 are sections corresponding to the dice bone 18 and have dice bone supporting protrusions 80 having a maximum thickness. The surface 80A of the dice bone supporting convex portion 80 is inclined downward from the portion corresponding to the dice bone 18 toward the front and back to gradually decrease the thickness. In other words, when the foot is placed inside the shoe in which the insole 1 is mounted and a standing posture is formed, the dice bone supporting protrusion 80 corresponding to the dice bone 18 exerts the maximum stress on the inner surface of the foot. The insole 1 has a structure in which the stress is gradually eased and gradually decreased from the front and back from the dice bone supporting convex portion 80.

In addition, as the structure of the bottom surface side of the insole 1, the portion in contact with the shoe is flat at the portion corresponding to the dice bone 18, that is, the inner side of the dice bone supporting convex portion 80. With this structure, a reaction force often acts on the dice bone 18 from the shoe.

The S12-S12 cross section and the S13-S13 cross section are also portions corresponding to the calcaneal tubercle 12A, and are provided with the calcaneus anterior support projection 90 having the maximum thickness. The surface 90A of the anterior calcaneal support projection 90 is inclined downward from the position corresponding to the calcaneal tubercle 12A toward the front and back to gradually reduce its thickness. In other words, the insole 1 has a structure that gradually decreases the stress from the front and back of the calcaneus support projection 90 as it gets farther from the front and back. In addition, the area where the shoe is in contact is equivalent to The position of the calcaneal tubercle 12A, that is, the inner side of the front calcaneal support projection 90 is flat. With this structure, a reaction force often acts on the calcaneal tubercle 12A from the shoe.

The S14-S14 section is at the site corresponding to the fifth metatarsal bone 34 constituting the lateral longitudinal arch, and the surface is raised.

This part is located outside the dice bone supporting convex portion 80 and the calcaneus front supporting convex portion 90, and has a slight bulge in consideration of stability. However, it is not a configuration that restricts the movement of the foot. A thickness-removed portion 74 is provided at a portion corresponding to the lateral longitudinal arch of the foot. The insole 1 is attached to the outside of the dice bone support convex portion 80 and the calcaneus front support convex portion 90 to sink. Even when the 5th metatarsal bone 34 of the lateral longitudinal arch is strongly acted on, the insole body 160 is deformed by the thickness cut-out portion 74 and relieves stress.

When the insole 1 is installed in this structure, the dice bone 18 is supported with the dice bone supporting protrusion 80 as the vertex. Because the dice bone 18 is supported from below, the foot can maintain the neutral position toward the left, right, forward, backward, and forward while allowing the eversion with the dice bone 18 as the support point to allow eversion, and the eversion to allow eversion.

Thereby, the insole 1 does not hinder the normal movement of the joint, and it is not necessary to use other parts to compensate, and it is easy to move the center of gravity of the front, back, left and right. That is, the insole 1 is not fixedly restricted as if the foot is covered with plaster, but the surface is tilted downward from the dice bone support convex portion 80 in the radial direction to relieve the stress, and the thickness-removed portion 72, 74 to make the insole 1 itself deform easily and allow movement. The insole 1 will be shaped to support a considerable portion of the dice bone 18 from below, while correcting and preventing the bones of the foot from passing. Degree of skew, while smoothly guiding the internal rotation and external rotation.

Figure 5 shows the arch of the foot.

When a person's soles are walking or traveling, as long as they are in a natural state, an arch of the foot is formed (shown in a dotted pattern) 119.

The arch 119 includes a medial longitudinal arch 121 and a lateral longitudinal arch 122 formed toward the long side of the foot, and a lateral arch 120 formed toward the short side of the foot. The transverse arch 120 is formed across the first to fifth metatarsals 26 to 34 as shown in FIG. 2. The medial longitudinal arch 121 is formed across the calcaneus 12, talus 14, scaphoid 16, three wedge bones 20 to 24, and the first to third metatarsals 26 to 30. The lateral longitudinal arch 122 is formed across the calcaneus 12, the dice 18, and the fourth to fifth metatarsals 32 and 34.

FIG. 6 is a schematic diagram showing the principle of the weight F of the user acting on the calcaneus 12 from the tibia 68 via the talus 14 when the insole 1 is attached.

The calcaneus 12 line becomes an important part for supporting the weight F of the user. The upper end 12B of the calcaneus at the front side of the calcaneus 12 forms a force application point P1, and the lower end of the calcaneus (back of the calcaneus) 12C forms a support point P2. Therefore, the calcaneus 12 has a moment acting around the support point P2.

This structure is capable of stabilizing the calcaneus 12 through the calcaneal nodule 12A which is substantially directly below the force point P1 supported by the front calcaneal support protrusion 90. In addition, the calcaneal tubercle 12A is at a distance from the lower calcaneal end 12C forming the support point P2. Therefore, by setting the front calcaneal support projection 90 at a position corresponding to the calcaneal tubercle 12A, a small force can be used to effectively Support calcaneus 12.

The dice bone 18 also has the user's weight F via the calcaneus 12 while functioning. Regarding the dice bone 18, since the first to fifth metatarsal heads 26A to 34A form a support point P3, a moment acts on the dice bone 1 centered on the support point P3.

In this structure, the dice bone 18 can be stabilized by supporting the dice bone 18 directly below the power point P1 with the dice bone supporting protrusion 80.

In addition, the dice bone 18 is at a distance from the first to fifth metatarsal heads 26A to 34A forming the support point P3. Therefore, by providing the dice bone supporting protrusion 80 at a position corresponding to the dice bone 18, a smaller one can be used. The force effectively supports the dice bone 18.

However, only by supporting the dice bone 18, sometimes the calcaneus 12 is not easy to stabilize, and the dice bone 18 and the calcaneus 12 and the joint (the calcaneal joint) may be skewed.

Since the calcaneus 12 constitutes both the medial longitudinal arch 121 and the lateral longitudinal arch 122 at the same time, if the calcaneus 12 is unstable, it is not easy to maintain the longitudinal arch in a normal position. In particular, as shown in FIG. 6, the calcaneal nodule 12A at the front portion of the calcaneus 12 is located at the position where the mid plantar ligament 64 connecting the second to fifth metatarsals 28 to 34 overlaps. The long plantar ligament 64 also functions to maintain the longitudinal arch.

In this structure, the calcaneal nodule 12A is supported by the front calcaneal support protrusion 90 through the plantar ligament 64, so the calcaneus 12 is stable, can reduce the deflection of the calcaneal joint, and can keep the longitudinal foot arch in a normal position. With this, the longitudinal arch can effectively function as a spring. In particular, at night, the function of the long plantar ligament 64 to maintain the longitudinal arch is reduced compared to the daytime, so it is effective to support the long plantar ligament 64. Anterior calcaneal support The part 90 is a part 4 including the calcaneal tubercle 12A corresponding to the position where the plantar ligament 64 overlaps.

The anterior calcaneal support projection 90 is not only to support the plantar ligament 64 to promote passive stabilization of the arch, but to support the long fibular long muscle that is important for active stabilization of the lateral longitudinal arch through the plantar ligament 64. Stop tendon 66. Here, passive stabilization is performed by the ligament, and active stabilization is performed by the muscle (tendon). The long tendon 66 of the peroneus longus muscle is wound around the dice bone 18 as shown in FIG. 2, and the sole of the foot is transversely cut from the lateral edge of the foot and stopped at the first wedge bone 20 and the first sacrum 26 bottom. Furthermore, a part of the front calcaneal support projection 90 is located at the lower part of the dice bone 18 and supports the scaphoid 16 through the dice bone 18. Thereby, the stop tendon 67 of the posterior tibial muscle, which is the most important active stabilization structure of the medial longitudinal arch, is indirectly supported.

The stopping tendon 67 of the posterior tibialis muscle exposes the fascia to the first to third wedge bones 20 to 24, the second to third metatarsal bones 28, 30, and the scaphoid bone 16. With the oblique direction of the two muscles of the peroneus longus and posterior tibialis, the longitudinal arch can be maintained in addition to the transverse arch.

In addition, since the calcaneus 12 also constitutes a joint, only a fixed support will hinder the movement function, and therefore, movement must be allowed.

The insole body 160 has a structure in which the dice bone supporting convex portion 80 is centered, and the surface is inclined downward to relieve the stress in the radial direction. Therefore, the joint composed of the calcaneus 12 is allowed to move. More specifically, the front calcaneal support projection 90 is formed of a relatively soft material. Due to the weight of the user, the thickest portion will sink and support the calcaneal nodule 12A. With the front of the calcaneus The bottom support projection 90 sinks, the insole 1 is tilted downward with the dice bone support projection 80 as the center, and the dice bone 18 is used as a support point to support the foot, and the dice bone support projection is allowed. The part 80 is centered on the movement of the foot.

In this structure, the front calcaneal support projection 90 abuts on the calcaneal tubercle (the front of the calcaneus of the foot) 12A, and maintains the medial longitudinal arch 121, lateral longitudinal arch 122, and lateral arch 120 of the foot.

The calcaneus 12 can be stably supported by the front calcaneus support projection 90, and the lateral arch 120, the medial longitudinal arch 121, and the lateral longitudinal arch 122 of the sole of the foot can maintain a natural shape, making the foot stable and sporty. Promotion.

Furthermore, in this state, that is, the state in which the front calcaneal support projection 90 maintains the medial longitudinal arch 121, lateral longitudinal arch 122, and lateral arch 120, the bulging portion 100 is the first supporting leg. Metatarsal head (thumbular ball) 26A, 2nd to 5th metatarsal head (small toe ball) 28A to 34A.

In this structure, as shown in FIG. 6, the surface portion 100A of the bulged portion 100 is held upward by the bulged portion 100 in contact with the midsole 7 of the shoe, and the surface portion 100A, the ball 26A, or the small toe The first to fifth metatarsal heads 26A to 34A of the ball 34A and the like, that is, the root sides of the toes are held upward.

Therefore, a state in which the toes of the calcaneus front support projection 90 are not restricted while maintaining the arch of the foot is formed.

Generally, the midsole of shoes is to raise the heel side and lower the toe side to facilitate walking, but because the toe side is lower, when applying weight, force is easily applied to the toe side, making all toes easier. Arrive Connected to the midsole 7 of the shoe. Therefore, it is not easy for the toes to move and hinder the natural movement of the toes, and it is difficult for the toes to be naturally stimulated by movement.

In contrast, in this structure, since the bulging portion 100 holds the thumb ball 26A and the small toe ball 34A at a higher position with respect to the midsole 7 of the shoe, it is supported by the foot system of the insole 1 It is easy to approach the level in shoes, and it is not easy to put weight on the toe side that is more forward than the support point P3 (see FIG. 6), and it is easy to move between the toes.

The insole body 160 in this structure is provided with the calcaneus front support projection 90. Therefore, the user of the insole 1 is in a state in which the arches 120 to 122 of the sole of the foot can maintain a natural shape, the toe side becomes high, and the toe naturally grasps the ground while walking or traveling, and easily moves. Therefore, when going uphill or going up and down stairs, the force is easily applied to the toe side, and the toes easily get ideal exercise stimulation. By using the insole 1 of this structure, a decrease in the physical function of the foot is easily suppressed.

As long as you wear shoes with the insole 1 with this structure installed, you can train your toes. In particular, in this structure, since the insole 1 is also provided with the dice bone supporting convex portion 80, the bones of the foot are adjusted in a balanced manner, stability and performance are further improved, and training is easier.

The thickness of the insole front portion 110 in this configuration is thinner than the bulged portion 100, so the degree of freedom of the toes in front of the first to fifth terminal bones 54 to 62 of the foot is further increased.

The action of the toes grasping the ground is composed of the basal bones 36 to 44, the middle bones 46 to 52, and the terminal bones 54 to 62 in the second figure, which is the so-called toe placement of the insole front 110 and the ball 26A. And small toe ball 34A It is easy to perform when the exit part 100 is softer.

The thickness of the insole front portion 110 in this embodiment is thinner than the bulged portion 100 and is relatively soft, so that the toes can be moved easily.

Therefore, the walking action of grasping the ground with the toes can be easily performed, and the exercise effect can be improved. It can maintain the shape of the arch of the sole of the foot to ensure the stability and sportiness of the body, and improve the exercise effect.

In this structure, since the bulged portion 100 is formed on the inner surface 1B, as shown in FIG. 6, a gap 111 is generated between the close portion of the bulged portion 100 and the midsole 7 of the shoe. Therefore, it is easy to press the insole front portion 110 of the insole 1 toward the gap 111 from above. In addition, a V-shaped recess 105 is also formed in the bulging portion 100, and the thickness between the toe ball portion 103 and the other toe ball portion 104 becomes thin. Therefore, it is easy to press the insole front portion 110 toward the gap 111 with the toe.

Thus, in this embodiment, it becomes easy to bend a toe, and it is easy to apply a force to a toe, and therefore it is easy to perform the action of grasping the ground with a toe.

In addition, since the bulging portion 100 is in contact with the sole of the foot because of the flat surface portion 100A, it is less likely to hinder the movement of the foot than when it is in contact with the sole of the foot in an uneven shape.

On the other hand, since it is not easy to hinder the movement of the foot, the position of the thumb ball 26A or the small toe ball 34A may be shifted during walking or exercise, but the bulging portion 100 is formed broadly in the front-back direction. The bulged portion 100 can support the toe ball 26A and the small toe ball 34A.

As described above, the insole 1 for shoes according to this embodiment includes the medial longitudinal arch 121 and the lateral longitudinal arch in order to maintain the foot. 122 and the transverse arch 120 abut the anterior calcaneal support projection 90 of the anterior calcaneal portion 12A of the foot; and the anterior calcaneal support projection 90 maintains the medial longitudinal arch 121 and the lateral longitudinal arch 122 And the transverse arch 120, the bulging portion 100 for supporting the ball 26A and the small toe ball 34A of the foot to support the foot, and in front of the bulging portion 100 is provided with a thinner insole than the bulging portion 100.部 110。 110. Therefore, the shapes of the arches 120 to 122 on the soles of the feet can be maintained in a natural state to ensure the stability and mobility of the body, and at the same time, the action of grasping the ground with the toes can be easily performed, and the toes can be trained.

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

Moreover, in this embodiment, the front edge portion of the bulging portion 100 extends on a line connecting the first base bone 36 to the fifth base bone 44 of the foot, and the first base bone 36 and the second base bone 38 A V-shaped recess 105 is formed in the front edge portion therebetween, and is recessed toward the rear. Therefore, it is easy to press the toe, that is, the insole 1 corresponding to the first base bone 36 and the first terminal bone 54 downward, and it is easy to grasp the ground with the toe. .

Further, in the present embodiment, an arc-shaped recessed portion 106 is formed in the rear edge portion of the bulging portion 100, and the central portion in the width direction is recessed forward. Therefore, it is not easy to make the bottom of the foot feel the boundary of the bulging portion 100, and the discomfort can be reduced.

In this 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 weight, and therefore, the discomfort caused to the feet can be reduced.

Further, in this embodiment, a dice bone supporting protrusion 80 is disposed so as to overlap with the calcaneus front supporting protrusion 90. The dice bone supporting protrusion 80 includes a dice bone 18 from the foot including a portion corresponding to the scaphoid bone 16, The thickness is gradually decreased toward the left and right edges, and the thickness is gradually decreased from the portion corresponding to the dice bone 18 toward the front and back, so that the thickness is gradually decreased in the radiation direction of the front, back, left, and right. Therefore, since the dice bone supporting convex portion 80 is provided, the dice bone 18 and the calcaneus are maintained in a state in which the arch shape of the calcaneal joint including the dice bone 18 and the calcaneal 12 is maintained, and the movement of the foot is allowed. 12 is stable, so the distortion of the calcaneal joint is reduced, and the entire heel bone including the dice bone 18 and the calcaneus 12 is stable in a natural state. As a result, the joints of the feet can move freely, so the function of the feet can be improved.

However, the above-mentioned embodiment is only the same as that of the present invention, and it is needless to say that the embodiment can be appropriately changed within a range not departing from the gist of the present invention.

For example, in the above-mentioned embodiment, the insole body 160 is integrally formed, but other convex portions 2 or bulging portions 100 may be detachably attached to a flat insole material. In addition, the insole body 160 may be provided in a plurality of layers, and the convex portion 2 and the bulging portion 100 may be attached to the intermediate layer, thereby forming unevenness on the surface material.

Although the dice bone supporting convex portion 80, the calcaneus front supporting convex portion 90, and the bulging portion 100 are solid, the dice bone supporting convex portion 80, the calcaneus front supporting convex portion 90, and the bulging portion 100 may be solid. Surface 80A, 90A, 101 The interior is hollow.

The purpose of the insole for shoes of the present invention is to improve the improvement of standing posture and sports function. In addition to being used as daily shoes, it is also suitable for being widely used in sports shoes such as skiing or football, or Various shoes, such as medical shoes for the purpose of healing or rehabilitation, and training shoes for the purpose of improving health.

Claims (5)

An insole for shoes, in which the calcaneus of the foot forms a force application point at the upper end of the front side of the calcaneus, and a support point is formed at the back of the calcaneus, and has the function of moment acting as a center of the support point. The front surface is provided with a calcaneus front support projection, which is protruded toward a portion corresponding to the front of the calcaneus of the foot, which is located directly below the force application point, and abuts the support point. In the state of the surface of the insole body, in order to maintain the medial longitudinal arch, lateral longitudinal arch, and transverse arch of the foot, the front calcaneus support projection is abutted directly below the force application point. Anterior part of the calcaneus, and an insole with a toe ball support portion, the toe ball support portion is connected to the anterior calcaneus support convex portion to maintain the medial longitudinal arch, lateral longitudinal arch, and lateral arch In the state, the toe ball and the small toe ball supporting the foot are bulged downward. In order to make the toe easily grasp the ground, the front edge of the toe ball support is attached to the The 1st basal bone of the foot is connected to the 1st 5 The basal bone extends on the line, and the front edge between the first and second basal bones is recessed toward the rear. The toe ball support portion is provided in front of the toe ball support portion to be thinner and softer than the toe ball support portion. Front of the insole. The insole for footwear according to item 1 of the patent application scope, wherein the upper surface is flat from the front portion of the insole to the toe ball support portion. The insole for footwear according to item 1 or 2 of the scope of patent application, wherein a widthwise center portion of a rear edge portion of the toe ball support portion is recessed forward. The insole for footwear according to item 1 or 2 of the scope of patent application, wherein the thickness of the outer peripheral portion of the toe ball support portion is gradually reduced. The insole for footwear according to item 1 or 2 of the scope of patent application, wherein a sacral support projection is arranged to overlap the calcaneus front support projection, and the sacral support projection is a sacrum from the foot. Tilt down to the left and right edges so as to include a portion equivalent to the scaphoid to gradually reduce the thickness, and gradually decrease the thickness from the position corresponding to the dice toward the front and back, so that the thickness is directed toward the front, back, left, and right. Decreasing.