JP2020080975A - Sole and shoe - Google Patents

Abstract

To provide a sole and a shoe which can stabilize a posture and walking and can preferably prevent fatigue due to walking.SOLUTION: A sole 101 is formed into a cup insole shape in which an inner sole 104 surrounds an outer peripheral edge of a surface part 104A by a peripheral wall part 117, an inside 115 of a toe part 114 is lower than an outside 116 in a height, the surface of the toe part 114 is formed into an inclined plane which is inclined downward from the outside to the inside, a cross section of the inner sole 104 is formed into a curve shape whose surface is downward recess from an arch part 112 to a heel part, a surface of the inner sole 104 is formed so that a rear end on the heel side is high, and is formed into an inclined plane which is inclined downward and gently from the rear end 111 of the heel side to the arch part 112.SELECTED DRAWING: Figure 4

Description

TECHNICAL FIELD The present invention relates to a shoe sole and a shoe that are stable in posture and walking and are suitable for preventing walking fatigue.

Footwear such as shoes and sandals is composed of an upper part, excluding the sole of the shoe, and an upper part, which is the base part that supports the foot (sole). They are put together and integrated with an adhesive or the like.

In footwear such as shoes, a sole is an important member that influences posture stability during walking and ease of walking. Such a shoe sole has a structure in which the toe side is low and the heel side is inclined so as to be high (Patent Document 1).

JP, 2013-208199, A

However, the shoe sole disclosed in Patent Document 1 only has an inclined structure in which the toe side is low and the heel side is high, and further development of the shoe sole is desired.

Therefore, the present invention has been made by paying attention to the unsolved problems of such conventional techniques, and provides a shoe sole and shoes that are stable in posture and gait and prevent walking fatigue. It is intended to be provided.

[Invention 1] In order to achieve the above object, the shoe sole of Invention 1 is a shoe sole in which a book sole is fixed to the back surface of the insole, and the insole has an outer peripheral edge of a front surface portion formed by a peripheral wall portion. It is formed in the shape of a cup insole that surrounds, the inside of the toe portion is formed to be lower in height than the outside, and the surface of the toe portion is formed into an inclined surface that inclines downward from the outside to the inside. The cross-section of the bottom, the surface is formed in a concave curved shape downward between the arch portion and the heel portion, the surface of the insole is high at the heel side rear end, from the heel side rear end It is formed on an inclined surface that gently inclines downward toward the arch part.

[Invention 2] Further, the shoe sole of Invention 2 is the shoe sole of Invention 1, wherein the inclination angle of the inclined surface of the toe portion is 10 degrees or less.

[Invention 3] Furthermore, in the shoe sole of Invention 3, in the shoe sole of Invention 2, the inclination angle of the inclined surface of the toe portion is 4.7 degrees or more.

[Invention 4] On the other hand, in order to achieve the above object, the shoe of Invention 4 has the shoe sole of any one of Inventions 1 to 3 and an upper that covers the instep of the foot.

As described above, according to the shoe sole of the invention 1, it is not necessary to previously install the insole on the surface of the insole, and the posture and the walking can be stabilized and the walking fatigue can be prevented only by wearing the shoes. .. In particular, by lowering the height of the toes inside more than outside, the posture and walking stabilization effect and the effect of preventing walking fatigue are the effect of holding the big toe and little finger of the foot by the peripheral wall and the cross section of the insole. , The body pressure is generally applied to the surface portion by forming the surface in a downwardly concave curved shape between the arch portion and the heel portion, and the insole surface is higher at the heel side rear end, and the heel side is higher than the heel side. By forming a sloping surface that gently inclines downward from the rear end toward the arch, when you put on shoes, weight pressure is naturally applied to the entire sole of the toe, and the body stands upright without bending or turning over. Is obtained. Due to the synergistic effect of these actions, the posture and walking stability are good and wearing fatigue can be prevented by simply wearing shoes.

Further, according to the shoe sole of the second aspect, the stability of posture and walking can be further improved.

Furthermore, according to the shoe sole of the invention 3, the posture and the stability of walking can be further improved.

On the other hand, according to the shoe of the invention 4, the posture and the walking are stable and the walking fatigue can be prevented only by wearing the shoe without separately preparing an insole or the like.

1 is a top view of a right foot of a room shoe showing an embodiment of a shoe according to the present invention. It is an inner side view of the room shoe shown in FIG. FIG. 2 is a front view of an insole of a left foot room shoe paired with the room shoe shown in FIG. 1. FIG. 4 is a sectional view taken along the line BB of the toe portion of the insole shown in FIG. 3. FIG. 1 is an exploded perspective view of a cup insole type insole of shoes, which is a premise of the present invention, and is a view showing an insole for a left foot. It is a front view of the insole main-body part of the insole of the cup insole type shown in FIG. FIG. 7 is a sectional view taken along the line AA of the toe portion of the insole body shown in FIG. 6. (A) is a figure which shows the height of the right and left side of a plurality of places in the length direction from the fingertip part to the heel part of the insole body part for the right foot shown in FIG. [Fig. 3] is a diagram showing a cross-sectional shape.

Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.
Before describing the embodiments of the present invention, the technology on which the present invention is based will be described with reference to FIGS. 5 to 8.

<Prerequisite technology>
In FIG. 5, the cup insole type insole 1 is an insole for the left foot, and the upper fabric portion 20 is superposed on the insole main body portion 10 and adhered by an adhesive. The insole 1 is detachable from the shoe body 2 as shown in FIG. 7, for example. The insole 1 of the base technology is not limited to the cup insole type and may be a type that is adhered to the shoe body. The insole body 10 is made of a low-repulsion material and formed into a three-dimensional solid shape.

As shown in FIGS. 5 and 8, the insole main body 10 is formed to have a smaller thickness as it goes from the heel-side rear end 11 to the arch part 12 to the toe-side tip 13. The rear end 11 of the surface of the insole body 10 is high, the surface gently inclines downward toward the arch part 12, and inclines upward from the toe part 14 toward the tip 13. As shown in Fig. 8(b), the cross section of the insole main body 10 has a curved shape in which the bottom surface is convex downward between the toe portion and the heel portion, and the surface is concave downward between the arch portion and the heel portion. Is formed into a curved shape. In this way, by forming the bottom surface and the surface of the insole main body 10 in a curved shape, when body weight pressure is applied to the outer peripheral edge of the insole main body 10, the outer peripheral edge is deformed downward as a whole. , Body pressure is evenly applied to the entire sole including the arch.

As shown in FIG. 6, in the insole body 10 for the left foot, the left side in the figure is the inner side 15 that is the thumb side of the left foot, and the right side is the outer side 16 that is the little finger side of the left foot. In the insole body 10 for the left foot, in the toe portion 14, the thickness of the inner side 15 is smaller than the thickness of the outer side 16, and the inner side 15 is lower than the outer side 16 in the width direction (left-right direction).

As shown in FIG. 7, in the insole body 10 formed in a three-dimensional shape, the surface of the toe portion 14 is formed as a downward inclined surface at an inclination angle θ from the outer side 16 to the inner side 15. In the present embodiment, the inclination angle θ is 5 degrees. Note that the inclination angle θ is not limited to 5 degrees, and may be formed on the surface of the toe portion 14 so that the outside 16 is high and the inside 15 is low. Of course, the same applies to the insole for the right foot.

In the insole 1, when the inner side 15 of the toe part 14 is made lower than the outer side 16, the knees of the left and right feet enter the inner side, and the thighs, waist and the like are tightened. As a result, you will have a better standing posture and will not bend forward or turn over. In addition, the stride becomes wide. The tilt angle at which such an effect is most exerted is 5 degrees, and the same effect can be obtained in the range of 5 degrees to 10 degrees. Of course, 5 degrees and 4.7 degrees or less need not be 0 degrees. In short, when the shoes provided with the insole 1 are worn, the inclination angle θ is such that both knees naturally face inward.

The upper cloth portion 20 is formed in a three-dimensional three-dimensional shape that matches the shape of the upper surface of the insole body portion 10. For example, a leather or cloth cloth 22 is adhered to a base portion 21 of a low-resilience material with an adhesive. The upper fabric portion 20 is a member that comes into direct contact with the sole of a person wearing shoes. Therefore, the insole body 10 is formed into a three-dimensional three-dimensional shape that does not hinder the inclination angle θ of the toe portion 14 and transmits the inclination angle θ to the sole of the foot.

By providing the insole body 10 of the insole 1 with the inclination angle θ, there are effects that the posture and walking stability and walking fatigue can be prevented. Further, as a configuration that further enhances this effect, the cross section of the insole body 10 has a curved shape with a downward convex bottom surface between the toe portion and the heel portion, and the surface faces downward between the arch portion and the heel portion. It is formed in a concave curved shape, and the surface of the insole main body 10 has a high rear end 11 and is gently inclined downward toward the arch part 12. According to these configurations, weight pressure is evenly applied to the entire sole including the arch, so that the weight pressure is evenly applied to the little finger outside the foot and the inside thumb. The rear end 11 of the surface of the insole body 10 is high, and the surface is gently inclined downward toward the arch 12 so that when the shoe is put on, the body weight of the toes is naturally applied to the whole sole of the foot, and the body bends forward and bends. Stands upright without repeating.

The insole 1 of the base technology can be applied to sports shoes such as sneakers, high heels, golf shoes, shoes for pregnant women, shoes for commuting, and the like. Further, the upper fabric portion 20 may not be provided and only the insole body portion 10 may be configured.

Below, evaluation about the inclination angle of the toe part 14 of the insole 1 and its effect is shown below.
<Examples of prerequisite technology>
The evaluation method is that the insole with the inclination angle θ of the toe portion 14 is 0 degree (flat) (hereinafter referred to as “flat insole”) and the inclination angle is 4.7(5) degrees (hereinafter referred to as “5 degree insole”). .) and inclining angle θ of 10 degrees (hereinafter referred to as “10 degree insole”). Although the inclination angle was set to 5 degrees, the inclination angle was 4.7 degrees due to measurement accuracy and the like.

Next, a pregnant women's shoe having a flat insole on the body of the pregnant woman's shoe was prepared as Comparative Example 1, a shoe having a 5-degree insole on the shoe body was prepared as Example 1, and a 10-degree insole was provided on the shoe body. The shoe is Example 2.

Further, a high heel having a flat insole on the high heel body is a comparative example 2, a high heel having a 5 degree insole is provided on the high heel body, and a high heel having a 10 degree insole is provided on the high heel body. And

On the other hand, two test subjects (test subject 1 and test subject 2) wear the above-mentioned three types of pregnant women's shoes and high heels, respectively, (1) standing posture, (2) walking posture, (3) walking width, (4) ) Walking stability, (5) standing posture stability, and (6) vertical axis center-of-gravity position variation were evaluated.

The verification results for the shoes for pregnant women are shown in Tables 1, 2 and 3. The verification results for high heels are shown in Tables 3, 4 and 5.

Subject 1 is a pregnant woman and subject 2 is a female office worker.
(1) Evaluation of standing posture The standing posture when wearing shoes is quantitatively verified from the standing posture angle by image analysis. Specifically, the standing posture when wearing shoes is photographed from the front and side, and the correct posture, forward leaning posture, and backward leaning posture are quantitatively verified. Here, the correct standing posture means that a vertical line is drawn with the lateral calcaneus as the base point, and the knee, iliac crest, shoulder (acromion), and ear (ear) are positioned linearly. Say In this verification, the correct standing posture is an angle of 5.0 degrees from the vertical line starting from the ankle to the frontal region (Tables 1 and 4).

(2) Evaluation of walking posture To evaluate the walking posture when wearing shoes, take a side view of the walking state when the speed of the treadmill is set to 4.5 [km/h], and check the supporting foot with one leg supported. It was verified from the angle of the frontal position (walking posture angle) with respect to the vertical line as the base point.

(3) Gait width evaluation Gait width evaluation is performed by setting the speed of the treadmill in the same way as gait posture evaluation, and the number of steps from the toe of the hind foot to the toe of the forefoot when both feet touch the ground during walking. Verified.

(4) Evaluation of walking stability The stability of walking is quantitatively verified from the ground contact state of the heel when walking on shoes. To measure the heel ground contact state during walking, set the speed similarly to the evaluation of the walking posture in (2), take a picture of the heel ground contact state during walking on shoes from the rear, and measure the quantity from the heel ground contact state to the reference line. Verified.

(5) Evaluation of the stability of the standing posture To evaluate the stability of the standing posture, check whether the correct posture is secured, (a) the load difference between the left and right feet according to the sole pressure distribution chart, and (b) the longitudinal direction. It was quantitatively verified from the position of the center of gravity of the shaft (Tables 2 and 5). Specifically, using the FPS (plantar pressure measuring device: one screen), from the plantar pressure distribution chart at the time of standing, whether the standing posture of the whole sole can be secured (a) It was verified from the foot load difference (Tables 2 and 5). The range of pressure values in the sole pressure distribution chart was set to 44 [gf/cm ² ] to 400 [gf/cm ² ]. (B) The vertical axis center of gravity position quantitatively evaluates the stability during standing from the vertical axis center of gravity position from the heel (0%) to the toes (100%), and the most stable region is 48% to 53%. (Tables 2 and 5).

(6) Evaluation of variation of the center of gravity position during walking The variation of the position of the center of gravity during walking is calculated by calculating the center of gravity position from the sole pressure distribution map, and measuring the variation in the position of the center of gravity from heel contact to the forefoot kick. Analyze and verify. The pressure measurement range was set from 52 [gf/cm ² ] to 640 [gf/cm ² ].

A: Evaluation results when wearing shoes for pregnant women (see Tables 1, 2 and 3)
(A1) Evaluation result of standing posture As shown in Table 1, the standing posture angle (average) of Comparative Example 1 is 5.9 degrees, the standing posture angle (average) of Example 1 is 5.2 degrees, The standing posture angle (average) in Example 2 was 4.3 degrees. Therefore, it was judged that wearing the shoes of Example 1 was closest to the reference value (5.0 degrees), and a more stable standing posture could be secured, and the evaluation was “excellent”. In Example 2, the rod was in a slightly standing posture of 4.3 degrees, but was not tilted too much forward, and thus was set to “OK”. Comparative Example 1 was judged to be too leaning forward and evaluated as "impossible".

（Ａ２）歩行姿勢の評価結果
表１に示すように、比較例１の立位姿勢角度（平均）は７．１度、実施例１の立位姿勢角度（平均）は６．４度、実施例２の立位姿勢角度（平均）は６．７度であった。よって、実施例１の靴が最も安定した歩行姿勢が確保できていると判断し、評価を「優」とした。実施例２は実施例１よりも少し前傾となるが、大きく前傾しないので、評価を「可」とした。しかし、比較例１は大きく前傾したので、評価を「不可」とした。

(A2) Evaluation Result of Walking Posture As shown in Table 1, the standing posture angle (average) of Comparative Example 1 is 7.1 degrees, and the standing posture angle (average) of Example 1 is 6.4 degrees. The standing posture angle (average) of Example 2 was 6.7 degrees. Therefore, it was judged that the shoe of Example 1 was able to secure the most stable walking posture, and the evaluation was “excellent”. Although Example 2 is slightly more forwardly inclined than Example 1, since it is not significantly inclined forwardly, the evaluation is “OK”. However, since Comparative Example 1 was significantly inclined forward, the evaluation was set to "impossible".

(A3) Walking Width Evaluation Result When the posture close to the upright can be maintained, the knee joint is extended and a large walking width can be secured. On the other hand, when the forward leaning posture is deep, the knee joint is not extended and the walking width is small because the whole body is in a doglegged posture.

As shown in Table 1, the walking length when wearing shoes is the largest in Example 1, which has the smallest one-foot supporting posture angle during walking, of 65 [cm], and then the walking length in Example 2 is 62 [cm]. ], the stride length of Comparative Example 1 was 61 [cm]. The evaluation results of the stride were “Excellent” in Example 1 and “OK” in Example 2 and Comparative Example 1. As a result, it can be seen that ensuring a correct posture leads to a wide stride.

(A4) Evaluation result of stability of walking Stability of walking is stable when the heel ground contact position during walking is grounded with the center line when standing with both feet aligned, The deviation from the reference line to the left and right was verified as unstable.

The verification result shows that in the case of the subject 1, there were two displacements when wearing the shoes of Comparative Example 1, no displacement when wearing the shoes of Example 1, and four places when wearing the shoes of Example 2. Met.

On the other hand, in the case of the test subject 2, there were four displacements when the shoes of Comparative Example 1 were worn, two places when the shoes of Example 1 were worn, and five places when the shoes of Example 2 were worn. Met.

Therefore, the evaluation results are “Excellent” because Example 1 is the most stable, then Comparative Example 1 and Example 2 that is most deviated to the left and right, but “Comparative Example 1” and “Example 2” are “ "No".

(A5) Evaluation of stability during standing The stability during standing is analyzed from the sole pressure distribution chart. The stability during standing is that the difference between the left and right foot loads is small, and the vertical center of gravity position is 48%. It was evaluated that it was located in the most stable region of 53%.

As shown in Table 2, the evaluation results were that the difference in load between the left and right was 6.3% in the case of Comparative Example 1, 2.4% in the case of Example 1, and 1.1% in the case of Example 2. ..

The vertical center of gravity was 55% in Comparative Example 1, 50% in Example 1, and 52.7% in Example 2.

Therefore, Example 1 and Example 2 were judged to be the most stable standing position, and both were evaluated as “excellent”. However, Comparative Example 1 was evaluated as "impossible" because the load difference between the left and right feet was large.

（Ａ６）縦軸重心位置の変動の評価
踵設地期から片足支持移行期、蹴り出し移行期（表３中の符号１〜８参照）において、歩行時の縦軸重心位置変動を、踵接地期から片足支持移行期、蹴り出し移行期の重心位置変動から評価した。

(A6) Evaluation of variation in vertical axis center of gravity position During vertical movement of the vertical axis center of gravity position during walking in heel transition period, one-leg support transition period, and kicking transition period (see symbols 1 to 8 in Table 3) It was evaluated from the change of the center of gravity from the transitional period to the one-leg support transitional period and the kicking transitional period.

As shown in Table 3, no difference was found in the variation of the center of gravity position in Comparative Example 1, Example 1, and Example 2 until the one-leg support period, but the variation from the kick-out transition period to the kick-out period. As compared with Comparative Example 1 and Example 2, in Example 1, smooth fluctuation of the center of gravity position was observed, and kicking out was also kicking out with the shoe tip (84.0%). Therefore, evaluation was made. "Yu" Example 2 Since it was kicked out with a toe (79.2%), the evaluation was “OK”. However, in Comparative Example 1, the kick-out on the toes was weak (76.6%), so it was evaluated as "impossible".

Ｂ：ハイヒール着靴時の評価結果（表４、表５、表６参照）
ハイヒール着靴時の（Ｂ１）静立姿勢の評価、（Ｂ２）歩行姿勢の評価、（Ｂ３）歩行幅の評価、（Ｂ４）歩行の安定性の評価、（Ｂ５）静立時の安定性の評価、（Ｂ６）縦軸重心位置の変動の評価は、妊婦用靴の着靴時の評価（Ａ１）〜（Ａ６）と同様に行った。

B: Evaluation results when wearing high heels (see Tables 4, 5 and 6)
(B1) Evaluation of standing posture when wearing high heels, (B2) Evaluation of walking posture, (B3) Evaluation of walking width, (B4) Evaluation of walking stability, (B5) Evaluation of stability during standing , (B6) The variation of the vertical axis center of gravity position was evaluated in the same manner as the evaluation (A1) to (A6) when wearing the shoes for pregnant women.

(B1) Evaluation result of standing posture Table 4 shows the evaluation result of the standing posture.
The standing posture angle of Comparative Example 2 was 6.2 degrees, Example 3 was 5.1 degrees, and Example 4 was 5.5 degrees. Therefore, it was judged that wearing the shoes of Example 3 was closest to the reference value, and a more stable standing posture could be secured, and the evaluation result was set to "excellent".

（Ｂ２）歩行姿勢の評価結果
表４に示すように、比較例２の靴を履いた時の立位姿勢角度は６．１度、実施例３の靴を履いた時の立位姿勢角度は６．１度、実施例４の靴を履いた時の立位姿勢角度は６．２度であった。よって、実施例３の靴を履いた時が最も基準値に近く、より安定した歩行姿勢が確保できていると判断し、「優」と評価した。実施例４も基準値に近いので、「可」と評価した。しかし、比較例２は基準値から離れているので、「不可」と評価した。

(B2) Evaluation Result of Walking Posture As shown in Table 4, the standing posture angle when wearing the shoes of Comparative Example 2 is 6.1 degrees, and the standing posture angle when wearing the shoes of Example 3 is The standing posture angle when the shoes of Example 4 were worn was 6.1 degrees and 6.2 degrees. Therefore, it was judged that wearing the shoes of Example 3 was closest to the reference value, and a more stable walking posture could be secured, and was evaluated as “excellent”. Since Example 4 was also close to the standard value, it was evaluated as “OK”. However, since Comparative Example 2 was far from the reference value, it was evaluated as "impossible".

(B3) Gait width evaluation result In gait width evaluation, when a posture close to an upright posture can be maintained, the knee joint is extended and a large gait width can be secured, and gait efficiency is high. On the other hand, when the forward leaning posture is deep, it was judged based on the fact that the knee joint is not extended and the walking width is reduced because the whole body is in a doglegged posture.

The evaluation result of the stride is that the stride when wearing the shoe of Example 3 having the smallest one-foot supporting posture angle during walking is the largest at 62.5 [cm], and then when wearing the shoe of Example 4 The stride was 61 [cm], and the stride when wearing the shoes of Comparative Example 2 was 58.5 [cm]. Therefore, Example 3 was evaluated as "excellent", and Example 4 and Comparative Example 2 were evaluated as "good". Therefore, ensuring a correct posture leads to a wide stride.

(B4) Gait Stability Evaluation Result The gait stability evaluation result shows that in the case of subject 1, there was one deviation when wearing the shoes of Comparative Example 2 and when wearing the shoes of Example 3. There were 1 place and 3 places when the shoes of Example 4 were worn. In the case of subject 2, there were 5 displacements when wearing the shoes of Comparative Example 2, 4 displacements when wearing the shoes of Example 3, and 5 displacements when wearing the shoes of Example 4. It was a place. From this, when the shoes of Example 3 were most stable, they were evaluated as "excellent", and Comparative Examples 2 and 4 were evaluated as "impossible".

(B5) Evaluation of stability during standing As shown in Table 5, the results of evaluation of stability during standing are that the left-right load difference when the shoe of Comparative Example 2 is worn is 8.7%, and It was 1.1% when wearing the shoes and 1.8% when wearing the shoes of Example 4. Regarding the position of the center of gravity of the vertical axis, 63.8% when the shoes of Comparative Example 2 were worn, 62.6% when the shoes of Example 3 were worn, and 65.3% when the shoes of Example 4 were worn. %Met. Comparative Example 2, Example 3 and Example 4 do not have a large difference in the vertical axis center of gravity position, but Comparative Example 2 is evaluated as “impossible” because the difference between the left and right load is large compared to Examples 3 and 4. 3 and 4 were evaluated as "excellent".

（Ｂ６）縦軸重心位置の変動の評価
表６に示すように、縦軸重心位置の変動の評価結果は、片足支持期までは比較例２、実施例３、実施例４の靴を履いた時の各重心位置変動には、それぞれ差は認められなかったものの、蹴り出し移行期から蹴り出しまでの変動をみると、比較例２と実施例４の靴を履いた時に比べ、実施例３の靴を履いた時はスムーズな重心位置の変動がみられ、また蹴り出しも靴先（番号８）で蹴り出している（８３．１％）ので、実施例３を「優」と評価した。実施例４のつま先の蹴り出しは大きいので（７８．１％）、「可」と評価したが、比較例２は蹴り出しが弱い（７６．８％）ので、「不可」と評価した。

(B6) Evaluation of Fluctuation of Vertical Center of Gravity Position As shown in Table 6, the evaluation results of fluctuation of the vertical center of gravity position were obtained by wearing the shoes of Comparative Example 2, Example 3, and Example 4 until the one-leg supporting period. Although there was no difference in the variation of the center-of-gravity position at each time, the variation from the kicking transition period to the kicking out was compared with that of Example 3 compared to when wearing the shoes of Comparative Example 2 and Example 4. When the shoes of No. 2 were worn, the center of gravity changed smoothly, and the kicking out was started by the tip of the shoe (No. 8) (83.1%), so Example 3 was evaluated as "excellent". .. Since the kick-out of the toe of Example 4 was large (78.1%), it was evaluated as “OK”, but the kick-out of Comparative Example 2 was weak (76.8%) and was evaluated as “impossible”.

Comprehensively evaluating the above evaluation results, the flat insoles are evaluated as “OK”, but there are some items that are evaluated as “NO”, the 5th insoles are evaluated as “Excellent”, and the 10th medium The floor is rated "OK".

上記実施例によれば、姿勢及び歩行が安定する結果、骨盤矯正の効果、Ｏ脚矯正の効果、内腿強化の効果（＝ダイエット効果）及び妊婦にあっては早産防止の効果が得られる。

According to the above-described embodiment, as a result of stabilizing the posture and walking, the effect of correcting the pelvis, the effect of correcting the O-leg, the effect of strengthening the inner leg (=the diet effect), and the effect of preventing preterm birth in a pregnant woman can be obtained.

<Embodiment>
Next, the present invention will be described in detail based on the embodiments shown in the drawings.
In FIGS. 1 and 2, a shoe 101 is a so-called room shoe, which is a pair of left and right shoes for the right foot. The shoe 101 includes a shoe sole 102 and an arch-shaped upper (instep) 103. The shoe sole 102 has a structure in which a book sole 105 is adhered to the back surface of the insole 104 with an adhesive.

As shown in FIG. 3, the insole 104 is formed into a three-dimensional solid shape, for example, from a low-repulsion material. The surface shape of the surface portion 104A forming the upper surface of the insole 104 is the same as the surface shape of the insole body 10 shown in FIGS. That is, the surface shape of the insole 104 is such that the heel-side rear end 111 is high, the surface gently inclines downward toward the arch part 112, and inclines upward from the toe part 114 toward the tip 113.

As shown in FIG. 3, the left insole 104 has an inner side 115 on the left side that is the thumb side of the left foot and a right side is the outer side 116 that is the little finger side of the left foot. In the toe part 114, the insole 104 for the left foot is configured such that the thickness of the inner side 115 is smaller than the thickness of the outer side 116 and the surface of the inner side 115 is lower than the surface of the outer side 116 in the width direction (left-right direction). There is.

The insole 104 is integrally erected upward along the outer peripheral edge of the surface so that the peripheral wall 117 surrounds the periphery to form a cup insole shape. The surface portion 104A and the peripheral wall portion 117 are integrally formed on the insole 104, and the foot is mounted such that the peripheral side surface is wrapped around the inner peripheral surface of the peripheral wall portion 117.

As shown in FIG. 4, a cup insole-shaped insole 104 formed in a three-dimensional solid shape has a surface of a toe portion 114 inclined from an outer side 116 toward an inner side 115, similarly to the insole body 10 shown in FIG. 7. It is formed on the inclined surface facing downward at an angle θ. In the present embodiment, the inclination angle θ is 5 degrees. Note that the inclination angle θ is not limited to 5 degrees, and may be formed on the surface of the toe portion 114 so that the outside 116 is high and the inside 115 is low. Of course, the same applies to the insole for the right foot.

In the insole 104, when the inner side 115 of the toe part 114 is made lower than the outer side 116, the knees of the left and right feet enter the inner side, such as the thighs and the waist, as in the insole body 10 of the base technology shown in FIGS. 5 to 8. Tightens. As a result, you will have a better standing posture and will not bend forward or turn over. In addition, the stride becomes wider. The tilt angle at which such an effect is most exerted is 5 degrees, and the same effect can be obtained in the range of 5 degrees to 10 degrees. Of course, 5 degrees and 4.7 degrees or less need not be 0 degrees. In short, when the shoe 1 having the shoe sole 2 of the present embodiment is worn, the inclination angle θ is such that both knees are naturally directed to the inside. .

According to the shoe 1 of the present embodiment, in the toe portion 114 of the insole 104, the outside little finger side of the toes placed on the surface portion 104A is lowered from the inside to the inside thumb side. Inevitably, an inward force is applied to the thumb, and the thumb comes into contact with the inner peripheral wall surface of the peripheral wall portion 117 with which the thumb contacts, and the reaction force causes the surface portion 104A of the insole 104 to be directed outward in the width direction by the back of the thumb. Push. However, in this embodiment, since the peripheral wall portion 117 and the surface portion 104A are integrally formed, the surface portion 104A does not move outward in the width direction. Therefore, since the foot does not move in the lateral direction during walking, fatigue does not occur.

That is, the toe part 114 of the surface part 104A of the insole 104 is inclined downward from the outside toward the inside at the inclination angle θ. Therefore, only by wearing the shoe 101, the posture and walking can be performed without providing the insole of the base technology. Is stable and can prevent walking fatigue.

In the shoe sole 102 of the present embodiment, the insole 104 is adhered to the outsole 105, and the bottom surface is a flat surface. Therefore, as in the insole body 10 of the base technology, the insole 104 of the insole body 104A faces downward. There is little deformation that transforms into. However, in the present embodiment, since the insole 104 has a cup-insole type structure in which the peripheral wall portion 117 is integrally formed, the peripheral wall portion 117 prevents the toes from moving in the width direction, and the arch portion has the surface portion 104A. It is held at a predetermined position without causing a positional deviation. Therefore, in the toe portion, the inner thumb and the outer little finger surely contact the surface portion 104A inclined at the inclination angle θ.

Further, the rear surface 111 of the surface portion 104A is high, and the surface is gently inclined downward toward the arch portion 112, so that when the shoe 101 is put on, the body weight of the toes 114 is naturally applied to the whole sole, The effect of becoming an upright posture without bending or turning over is demonstrated. Therefore, the holding action of the toes by the peripheral wall portion 117 forming the cup insole shape is ensured. Therefore, wearing the shoe 101 having the shoe sole 102 of the present embodiment makes it possible to stabilize the posture and walking and prevent walking fatigue.

In particular, when the shoe 101 is applied to a room shoe, the standing posture is improved during standing work indoors, and fatigue is reduced.

In the present embodiment, the form of the shoes 101 is a room shoe, but the present invention can be applied to sports shoes such as sneakers, high heels, golf shoes, shoes for pregnant women, shoes for commuting, and the like.

1... Insole, 2... Shoe body, 10... Insole body part, 101... Shoes, 2,102... Sole, 103... Upper, 104... Insole, 105... Outsole, 104A... Surface part, 11,111... Rear end, 12, 112... Arch part, 13, 113... Tip part, 114, 114... Toe part, 15, 115... Inner part, 16, 116... Outer side, 117... Peripheral wall part, 20... Upper fabric part, 21... Base part, 22... Fabric θ... Inclination angle

Claims (4)

A shoe sole with the outsole fixed to the back of the insole,
The insole is formed in a cup insole shape in which the outer peripheral edge of the surface portion is surrounded by the peripheral wall portion, the inside of the toe portion is formed to be lower in height than the outside, and the surface of the toe portion is from the outside to the inside. It is formed on an inclined surface that inclines downwards, and the cross section of the insole is formed in a curved shape with a downwardly concave surface between the arch part and the heel part, and the surface of the insole is the heel side. A sole having a high rear end and is formed into an inclined surface that gently inclines downward from the heel-side rear end toward the arch. In claim 1,
The shoe sole, wherein the inclination angle of the inclined surface of the toe portion is 10 degrees or less. In claim 2,
The shoe sole, wherein the inclination angle of the inclined surface of the toe portion is 4.7 degrees or more. A shoe comprising the shoe sole according to any one of claims 1 to 3 and an upper covering an instep of the foot.

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