JP6631960B2 - Footwear sole structure - Google Patents

Description

  The present invention relates to a sole structure inside and outside of a footwear sole for the purpose of assisting kicking during walking or running and improving the weight balance at the sole when standing.

Currently, shoe soles have been improved from hard and heavy leather materials to soft rubber and light synthetic resin materials, reducing the burden on the foot in the shoe.
In addition, the soles for running and walking are improved to have a functional structure as shown by their shapes.
On the other hand, the protection of the foot and the improvement of walking are responded by using various insoles or wearing equipment, improving socks and tights, and the like.
In addition, orthopedic approaches to troubles during the competition are becoming commonplace, and they are shifting from coping and preventive approaches.

However, social demands that attach importance to fashion have been such that leather shoes and especially shoes with high heels still abuse their feet.
In addition, shoes are manufactured on the premise of walking and running, but awareness of problems with feet, knees, legs and hips when standing up, material innovation and review of structure are proposed, shoe soles and insoles A variety of improvements have been tried.

Therefore, various proposals have been made for walking on the premise that swinging is proper walking.
First, an outer turning footwear bottom member that generates rotational torque in the outer turning direction when the sole touches the ground is formed on the heel part, smooth weight transfer to the side of the little toe part, and the inner finger direction to the little finger ball part Proposals have been made to form an inner turning footwear bottom member that generates a rotating torque, and to realize a tilting walk that enables smooth weight transfer from the heel to the little finger and from the little ball to the thumb. (Japanese Patent Application Laid-Open No. 2009-18124)
However, measures to limit the contact from the heel to the heel cannot cope with various walking modes of the user, and furthermore, the use of the shoe sole structure with other functions is questionable, This is a measure based on the premise that the surface is flat.

Next, in order to increase the flexibility of the stomping portion of the sole of the shoe itself, a non-stretchable member having good flexibility is attached to the stomping portion, and a groove portion extending in the longitudinal direction is provided to increase the flexibility, thereby increasing the flexibility of the shoe. A proposal has been made to twist the bottom. (Japanese Patent Application Laid-Open No. 2018-1169)
This proposal is an idea of the structure that twists the shoe sole itself and is important as a future subject.

JP 2009-18124 A JP 2018-1169 A

Generally, the explanation of walking and running starts with landing from the side of the heel, but the position of the sole at the time of landing varies greatly between individuals, and as shown by the diversity of the part where the soles decrease, it is said that there are hundreds of hundreds It is a walking form.
In the first place, walking and running are originally completed rational and efficient movements, and are movements for moving the body forward.
In other words, it is appropriate to start kicking with the forefoot, starting with kicking on the toe, as shown by the largest and thickest toe on the forefoot, and sufficient kicking from the heel I guess he will secure his landing.
In addition, it is assumed that the movement of kicking out with the toe is premised on smooth weight transfer from the side of the little toe to the side of the toe, and it is important that the movement is also accompanied by momentum.

In the first place, people formed a flexible and strong foot by walking barefoot on various uneven terrain and acquired the current foot structure.
In other words, walking should not be an operation acquired by learning after birth, but a function automated to the inherent hardness.
However, today's life with footwear intervenes, with the use of flat and hard ground and cramped and flat soles, lives with hundreds of hundreds of original walks.
As a result, the soles of the feet are weakened and deformed, so that proper walking cannot be performed, which also affects physical health.
At present, the sole structure of the shoe has been improved mainly based on the protection of the foot, and the viewpoint of the shoe sole structure based on the forward movement, which is the purpose of walking, is being asked.

Second, it is said that running cannot determine the ideal form due to the specific skeletal and muscular characteristics of each person.
In the first place, our foot structure is not a structure that supports continuous jumping on flat and hard ground with flat and hard soles, and running motion that continuously receives weight on the soles.
In other words, the foot structure is based on the assumption that the vehicle runs barefoot on uneven terrain.
In addition, training is built on a daily basis that compensates for and corrects individual differences in the running form, and research and improvement on the heel that deforms when receiving weight at landing is remarkable, and the form of landing is The production of shoe soles tailored to the needs is also becoming common.
Improvements have also been made in kicking out by improving the shape and projections of the shoe sole.
However, there has been a demand for an approach from the viewpoint of fundamentally performing the operation of kicking out, starting with the improvement and combination of the shape of the material and the sole.

Next, the sole of the high-speed running specification adopts a structure in which the shoe is kicked out by a hold using a spike based on the sole structure on the assumption that the weight shifts in a slow running.
In the first place, fast running is almost jumping, and landing and kicking out are instantaneous. In other words, the wisdom of weight shift from the heel side to the toe side, from the toe side to the toe side,
Fast driving is time consuming and uneconomical.
In addition, since the foot of a person is not a structure for running fast, an approach from a fundamental viewpoint for a shoe structure that runs fast is expected.

On the other hand, the weight in the standing position is 50% on the side of the heel, 25% on the side of the toe and the side of the little toe, respectively, and the weight on the outer vertical arch, the inner vertical arch, and the horizontal arch. Is said to be dispersed.
In addition, when standing, each part of the sole is constantly shaken and maintained by an automatic reflex to maintain the standing posture.
Originally, calorie consumption when standing should be lower than when sitting.
However, the foot inside the shoe on flat ground is placed in a flat, unnatural and cramped state, impeding this automatic function and improper muscle balance of the original foot. Equalized and weakened.
In other words, we think that the current shoes may be insufficient as a structure suitable for the standing foot.

Next, the relationship between the leg and the foot is as follows: the tibia supports the weight mainly from the talus to the first metatarsal bone, the second metatarsal bone, and the third metatarsal bone, and the fibula moves from the calcaneus to the fourth metatarsal. It is mainly responsible for walking, running, and balancing with respect to the bone and the fifth metatarsal bone, and prevents the heel from falling inward during walking or running.
In addition, the toe part mainly plays the role of supporting and pushing out the body, adapting to the movement of weight, the toe flexes and kicks out, but it is easy to feel the pressure of shoes, the other four toes are lower It shows a feature that makes it hard to feel the pressure of shoes.
In other words, the toe is susceptible to compression of the shoe, weakened and easily deformed as shown by hallux valgus, and affects the weakening of the inner vertical arch.

First of all, the foot in the shoe, especially the metatarsal heads are compressed from the side, so loosen the horizontal arch, the loose horizontal arch slides down the horizontal arch, the horizontal arch that slips down sheds weight outside. The outer longitudinal arch is loosened, resulting in a weight loss to the outside, which leads to a gait that cannot be sufficiently kicked out of the thumb.
In the state in which each arch descends, the weight is flowing to the side of the little toe, so that the knees are opened outward, the body cannot be held normally, and a burden is imposed on maintaining the standing posture.
In other words, if the inner vertical arch of the toe part is loosened from the heel part, the kick-out becomes ambiguous, the forward movement cannot be performed sufficiently, and the body weight flows outward and the posture is broken.
At present, people's daily lives are tired because each arch part is not functioning properly, and their posture is affected.
In other words, shoes currently in use are merely extensions from the viewpoint of protecting the foot, and are expected to be changed to a design that assumes walking, running, and standing.

The present invention captures the weight shift from the side of the small toe to the side of the thumb, as an operation of twisting the foot.
An object of the present invention is to promptly and reliably execute rolling (rotation), which is weight shift to the side of the toe, and turning (direction change), which is weight shift from the side of the toe to the side of the toe. Thus, kicking (pitching) with the toe is reliably performed, and a forward walking is realized as a correct walking.
In addition, the structure of the foot is considered from the viewpoint that it does not correspond to the standing posture.

The present invention forms a convex portion at a portion where the fourth metatarsal portion and the fifth metatarsal portion of the foot that bear the function of walking and running abut and a portion where the fourth metatarsal portion abuts, thereby increasing the convex portion. It is an object of the present invention to smoothly and reliably perform turning from a high side of a small toe to a side of a low toe with a fulcrum as a fulcrum.
In other words, the weight in contact with the high convex part repels and moves to the side of the thumb, which is the opposite direction, and the weight on the high convex moves to the side of the low toe. Turning, which is a weight shift from the side of the toe to the side of the toe, is realized.
The present invention realizes a correct walking that kicks out with the toe by realizing natural turning that the user is not conscious of.
In addition, correct weight transfer in the sole strengthens the muscles and ligaments of the foot and leads to a normal balance of each arch.

The present invention performs rolling, which is a weight shift to the side of the little toe, turning, which is a rapid weight shift to the side of the toe, and performing a correct pitching at the toe by performing a correct tilting walking. Realize.
In addition, since the foot structure is easy to flow to the side of the toe that is low in weight and the weight of the foot is low, the convex body formed on the side of the toe supports the horizontal arch part high, It complements and maintains the posture.

The footwear sole structure (1) of the present invention is a footwear sole structure (1) that forms a first convex portion (8) on a footwear inner bottom portion (2a) or a footwear outer bottom portion (2b) of a footwear (2). The first convex body (8) includes a fourth metatarsal part (6) and a fifth metatarsal part (7) of a foot part (4) on a footwear inner bottom part (2a) of the footwear (2). ) Is a portion that is located on the outer bottom portion (2b) of the footwear (2) of the footwear (2) facing the front portion (3a), which is the portion that is in contact with the front portion (3a). ), The first convex portion (8) is formed in a three-dimensional shape, and the first convex portion (8) is a first convex body engaging with the first convex portion (8). A first peripheral portion (8a), the first convex portion (8) and the first convex portion peripheral portion (8a) form at least one cut portion (8b), and the footwear (2) ), The foot portion (4) on the inner bottom portion (2a) of the footwear extends from the side of the little toe (4b) to the side of the toe (5a) with the first convex portion (8) as a fulcrum. It is characterized in that it is configured to perform turning as weight shift.

In the footwear sole structure (1) of the present invention, the height of the toe part side (4a) is lower than the height of the toe part side (4b) in the shape of the forefoot side part (9c). And the height of the toe side (4a) is lower than the height of the toe side (4b) in the shape of the heel side surface (9d). The height of the toe side (4a) is formed to be higher than the height of the heel side (4c) in the shape of the side of the toe (9e), and the side of the toe (9f) is formed. ), The height of the toe part side part (4b) is formed to be higher than the height of the heel part side part (4c), and the area of the forefoot part side part (9c) is The heel side surface (9d) is formed to be larger than the area of the heel side surface (9e), and the area of the toe side surface (9e) is larger than the area of the small toe side surface (9f). A second convex body (9) formed to be smaller than the area of the second convex body (9), and the second convex body (9) is engaged with the second convex body (9). A second peripheral portion (9a), and the second convex portion (9) and the second convex portion peripheral portion (9a) are configured to form at least one cut portion (9b). It is characterized by the following.

The footwear sole structure (1) of the present invention is configured such that the first convex portion (8) or the second convex portion (9) forms an overlapping convex portion (22) at least doubly overlapping. It is characterized by having.

In the footwear sole structure (1) of the present invention, the first convex portion (8) or the second convex portion (9) forms a divided convex portion (23) that is divided into at least two. It is characterized by comprising.

The footwear sole structure (1) of the present invention is configured such that the first convex portion (8) or the second convex portion (9) forms a void convex portion (24) having at least one void. It is characterized by having been done.

In the footwear sole structure (1) of the present invention, the first convex part (8) and / or the second convex part (9) may be such that the footwear inner bottom part (2a) or the footwear outer bottom part (2b) of the footwear (2). ) Or a mounting convex part (25) including a mounting part (25a) that is detachably mounted on the sole part (5) of the foot part (4).

  The footwear sole structure (1) of the present invention is characterized in that the footwear sole structure (1) is configured to form a multilayer footwear sole structure (26) in which at least two layers are laminated.

For example, it is said that correct weight shift on the sole during walking achieves correct walking.
However, as shown by the O-leg, hallux valgus, and the stoop, the way each person walks has an effect on posture and health.
In other words, a person has established a flexible and strong foot structure obtained by walking barefoot on a natural uneven surface.
However, walking on flat hard ground through a flat shoe sole weakened the foot structure.

The first effect of the present invention is to form a first convex portion at a portion where the fourth metatarsal portion and the fifth metatarsal portion of the footwear inside bottom portion and the footwear outside bottom portion are located, and a heel side portion. The weight that has moved from the first convex body part and the second convex body part, which is the weight movement that rides on the first toe part side by rolling that is the weight movement that rides on the first convex body part and the second convex body part. Since the turning, which is a quick weight shift from the high position to the low toe side, moves the weight, it is ensured that the pitching, which is kicking out at the side of the toe, is executed securely. , To realize a forward walking.
The present invention pays attention to turning in which kicking out is performed in the toe in order to execute swing movement, which is a normal weight shift in the sole obtained in the process of evolution.
This walking that repeats normal pitching strengthens the medial vertical arch of the sole and balances the muscles.
On the other hand, in the case of walking without landing from the heel, the weight on the sole of the foot is a natural recoil such as contacting the first convex body and the second convex body or climbing on the side of the toe. , It is possible to cope with various landing habits.

Next, the second effect of the present invention is that the first convex portion and the second convex portion are located at the portion where the fourth metatarsal portion and the fifth metatarsal portion of the footwear inside bottom portion and the footwear outside bottom portion are located. Because the first convex part and the second convex part of the outer part of the midfoot do not disturb the bending of the forefoot, the part along the bending of the MP line from the little toe to the toe Thus, turning, which is a natural weight shift that the user is not aware of, is realized.
This reliable turning achieves a natural kick out of the thumb.
In addition, the natural continuation of walking to kick out at the toe part realizes a habitual walking and a weight shift at the normal sole.
In addition, since correct walking is realized and the inherently efficient walking motion normalizes the balance of each arch, the posture is improved from the sole.

For example, a slow run manifests a plurality of landing forms, such as landing from the heel side or landing using the entire sole.
In addition, landing from the heel side has brought a strong shock to the heel part because the jumping weight is received by one foot, but efforts to absorb this shock are various improvements on the heel side part Has emerged.
In addition, for landings that use the entire sole, the direction of kicking is unclear due to the impact received by the entire sole, and therefore, conscious kicking training is required.

A third effect of the present invention is that the first and second metatarsal parts and the fifth metatarsal part, which are outside the metatarsal part of the inner sole and the outer sole of the footwear, are located at the first convex part and the second metatarsal part. Since the convex part is formed, the first convex part and the second convex part at a high position on the side of the little toe absorb the impact at the time of landing, and at the same time, the quick weight to the side of the thumb It realizes turning, which is movement.
In addition, turning, which is a quick weight shift, realizes efficient running and speeds up, ensuring that the twisting operation along the MP line is smooth and natural kicking that the user is not aware of improves the forward speed It is to realize that.

For example, for fast running, landing from the heel side should be performed using the middle foot and forefoot, the body is almost in the air, landing on the middle foot and instantly kicking out with the forefoot. .
This operation is a special operation that cannot be performed over a long distance, and places a heavy burden on the feet, legs, and the entire body.
The special shoes used in this special competition are not suitable for everyday use, are thin and light, and form a special shoe sole.
In other words, a shoe structure specialized in kicking the ground is incompatible with a rational shoe structure for walking.
In addition, the foot structure is such that the side of the toe is large and the side of the toe is small, and the ball of the toe is larger and thicker than the ball of the toe. It must be recognized that turning, which is a weight shift from the side of the little toe to the root of the side of the thumb, is a disadvantageous structure because it is formed.

Therefore, the fourth effect of the present invention is that, for fast running, the portion where the fourth metatarsal portion and the fifth metatarsal portion, which are outside the inner sole and the outer sole of the footwear, are located. By forming the first convex body part and the second convex body part and forming the small toe side part high, it is possible to simultaneously execute prompt pitching to the thumb part side part and pitching at the thumb part side part at the same time. Since it is possible, minimizing the time required for weight transfer from the side of the little toe to the side of the toe will increase the speed of kicking out and realize efficient and fast running.

For example, it is said that the weight in the standing posture supports 50% on the heel and 25% on the side of the little toe and the side of the thumb.
However, in the sole structure, an inner vertical arch is formed so that the side of the toe is higher than the side of the toe, and mainly has a function of supporting weight.
That is, the inner vertical arch functions as a cushion and a spring when walking.
In the first place, humans who have lived on their original two-legged nature have always maintained their standing posture while unconsciously shaking their bodies.
However, this function is a function acquired and acquired by living barefoot, so the function itself does not work properly in life with footwear such as shoes between the ground and barefoot, and the muscle balance of the sole is lost especially Due to the weakening of the inner vertical arch, the body weight shifts to the side of the little toe, and the function of maintaining the standing position cannot be secured.
This phenomenon weakens the ability of the large medial vertical arch, causes the lateral arch to slide down, and causes the weight to move to the side of the little toe, causing the knees to expand outward and exert extra effort on the body to maintain the standing position. And overwork each part of the body more than necessary.
In other words, you get tired.

A fifth effect of the present invention is that the first convex portion and the second convex portion are provided at a portion where the fourth metatarsal portion and the fifth metatarsal portion, which are the inner and outer sole portions of the footwear, abut or are located. As a convex body is formed, maintaining the normal sway by supporting the sliding horizontal arch part high, adjusting the standing posture balance, reducing the fatigue of standing work and adjusting and improving the body posture Is what makes it possible.
In particular, the foot in the pump is in a state where the weight is supported only by the forefoot, the position of the side of the little toe is low and the weight is supported only by the side of the thumb, and further, the side of the thumb The use of a shoe structure that keeps compressing weakens the inner vertical arch, so it tends to flow outwards, which is a weight shift, the knees expand, the ankles are twisted outwards, and it becomes difficult for the body to shake, so the feet and ankles The burden on the legs and knees is immense.
In other words, since the first and second convex portions of the present invention can be formed on the inner bottom of the footwear, they are formed on the inner bottom of the pump, and the fourth metatarsal portion and the fourth portion are the outer portions of the metatarsal portion. As the metatarsal can be raised, it prevents weight movement to the side of the toe in the pump and also supports weight on the side of the toe It is.

A sixth effect of the present invention is that the first convex portion and the second convex portion have an overlapping structure.
The first convex portion of the present invention is a variety of first convex portion and second convex portion based on a suitable selection that matches the function desired by the user by combining various materials using existing materials. Overlapping structures can be formed.
For example, a laminated structure that applies a difference in hardness, a specification in which a first convex body and a second convex body that incorporate a gel-like substance, a liquid substance, and a gas and are laminated to form a laminated structure, different heights Alternatively, the first convex portion and the second convex portion having a variety of overlapping structures can be formed based on a suitable selection that matches the function required by the user based on the hardness or the like.
In addition, the first convex body portion and the second convex body portion can meet the demands of various users by being formed by overlapping, dividing, or combining voids.

Next, a seventh effect of the present invention is that the first convex portion and the second convex portion have a divided structure.
The first convex part and the second convex part of the present invention have a divided structure, so that an existing material is used, and various materials are combined to make various divisions based on a suitable selection base that matches the function required by the user. The first and second convex portions of the structure can be formed.
For example, divided structure applying hardness difference, specification to improve the function of the sole by forming the first convex part and the second convex part according to the shape of the sole, and equilibrium with the foot inside the shoe Divided first convex body part and second convex body part are formed based on a suitable selection that conforms to the function required by the user, such as the specification for forming the second convex body part and the second convex body part to prevent slipping of the foot. A biconvex body can be formed.

Next, an eighth effect of the present invention is that the first and second convex portions have a void structure.
The first convex portion and the second convex portion of the present invention have an air gap structure, so that an existing material is used, and various materials are used to combine various materials. The first convex portion of the structure can be formed.
For example, a specification in which a large gap is formed in the first convex portion and the second convex portion outside the shoe to form a cushion effect of absorbing the vertical device at the time of landing, the first convex portion and the second outside the shoe. The first convex part and the second convex part of the diversified divided structure are formed based on a suitable selection that matches the function required by the user such as a specification that forms a valve on the convex part and allows ventilation in the shoe. It can be formed.
Further, the first and second convex portions are formed by combining and dividing or overlapping, so that it is possible to respond to various user requests.
What is the soft cushion effect of this void? Suitable for long distance running shoes.

Next, a ninth effect of the present invention is that the first convex portion and the second convex portion have an insertion structure.
The first convex portion and the second convex portion of the present invention can be formed on footwear in general.
For example, it is possible to form socks, tabi, shoes, slippers, sandals, etc. on the outside or inside, but the first and second protrusions of the present invention on the outside or inside of the insole. Since the specification for forming and inserting a can be made, it can be used for existing footwear, thereby realizing a cheap and simple specification.
In addition, the first convex body portion and the second convex body portion can meet the demands of various users by being formed by overlapping, dividing, or combining voids.

Next, a tenth effect of the present invention is that the first and second convex portions have a detachable structure.
The first convex portion and the second convex portion of the present invention can be formed on footwear in general.
For example, socks, tabi, shoes, slippers, sandals, etc., can be attached to the outer or inner portion, but the specification of forming the first convex portion of the present invention on footwear in general requires a certain process. .
In view of the above, it is possible to make the first and second protrusions of the present invention detachably attached to footwear or the sole of the user as a specification pursuing economy.
In addition, the use form that can be directly attached to the sole of the foot realizes inexpensive and simple use especially for preventing fall of the elderly or walking training.
In addition, the first convex body portion and the second convex body portion can meet the demands of various users by being formed by overlapping, dividing, or combining voids.
In addition, the first convex body portion and the second convex body portion can meet the demands of various users by being formed by overlapping, dividing, or combining voids.

FIG. 1 is a top view showing and explaining each arch portion on the front portion 3a or the back portion 3b of the present invention based on the skeleton diagram of the foot. FIG. 1A is a schematic front sectional view showing an example of a normal lateral arch portion 12 and a metatarsal head. FIG. 1B is a schematic front sectional view showing an example of a weakened lateral arch portion 12 and a metatarsal head. FIG. 1C shows that the first convex portion 8 of the present invention is formed on the front portion 3a of the present invention for the weakened lateral arch portion 12 and the metatarsal head, and the weakened horizontal arch portion 12 is raised. It is a schematic sectional drawing of the front which shows the example which supports. FIG. 1D shows that the first convex portion 8 of the present invention is formed on the back portion 3b of the present invention for the weakened lateral arch portion 12 and the metatarsal head, and the weakened horizontal arch portion 12 is raised. It is a schematic sectional drawing of the front which shows the example which supports. FIG. 2 is a schematic top view illustrating the foot portion 4 and the skeleton of the footwear 2 and showing an example in which the first convex portion 8 of the present invention is formed on the front portion 3a or the back portion 3b of the present invention. FIG. 2A is a cross-sectional view taken along the line CC of FIG. 2. FIG. 2B is a schematic side view showing a skeleton of the toe side 4 a of the foot 4. FIG. 2C is a schematic side view showing the skeleton of the small toe side 4 b of the foot 4. FIG. 2D is a schematic rear view showing the skeleton of the heel side 4 c of the foot 4. FIG. 3 is a schematic perspective view of the footwear 2 showing an example in which the first convex portion 8 of the present invention is formed on the front portion 3a of the footwear inner bottom portion 2a of the footwear 2. FIG. 3A is a schematic cross-sectional view taken along line DD of FIG. FIG. 2 is a schematic cross-sectional view in a longitudinal direction showing an example in which a foot portion 4 on a footwear inner bottom 3a of the footwear 2 forms a first convex body 8 of the present invention. FIG. 3 (b) shows an example of a state in which the foot 4 on the footwear inner bottom 2a of the footwear 2 performs rolling for weight shift with the first convex portion 8 as a fulcrum, and a schematic cross section in the lateral direction for explanation. FIG. FIG. 3C shows an example of a state in which the foot 4 at the footwear inner bottom 2a of the footwear 2 is turned with the first convex body 8 as a fulcrum for weight shift, and a schematic cross-section in the short direction is described. FIG. FIG. 3D is a schematic cross-sectional view in the lateral direction illustrating and illustrating an example of a state in which the feet 4 at the footwear inner bottom 2a of the footwear 2 are pitched. FIG. 4 is a schematic perspective view of the footwear 2 showing an example in which the first convex portion 8 of the present invention is formed on the back portion 3b of the footwear outer bottom portion 2b of the footwear 2. FIG. 4A is a schematic cross-sectional view taken along line EE of FIG. FIG. 3 is a schematic cross-sectional view in the longitudinal direction showing an example in which a first convex body portion 8 of the present invention is formed on a back portion 3b of a foot portion 4 on a footwear outer bottom portion 3b of the footwear 2; FIG. 4B is a cross-sectional view in the lateral direction for illustrating an example of a state in which the footwear 2 performs rolling for weight shift with the first convex body 8 at the footwear outer bottom 2b of the footwear 2 as a fulcrum. is there. FIG. 4C is a cross-sectional view in the lateral direction illustrating an example of a state in which the weight of the footwear 2 is turned with the first convex portion 8 provided on the outer bottom 2b of the footwear 2 as a fulcrum. It is. FIG. 4D is a cross-sectional view in the lateral direction illustrating an example of a state in which the foot portion 4 of the footwear 2 is pitched with the first convex portion 8 on the footwear outer bottom portion 2b of the footwear 2 as a fulcrum. is there. FIG. 5 is a perspective view illustrating an example of the shape of the second convex portion 9 of the present invention. FIG. 5A is a front view showing an example of the forefoot-side surface 9 c of the second convex body 9. FIG. 5B is a side view showing an example of the heel side surface 9 d of the second convex body 9. FIG. 5C is a side view illustrating an example of a side surface portion 9e of the second convex body portion 9 on the side of the thumb. FIG. 5D is a side view illustrating an example of the side surface 9 f of the second convex body 9 on the side of the toe. FIG. 5E is a top view illustrating an example of the second convex body 9. FIG. 6 is a perspective view showing an example in which the overlapping convex portion 22 on which the first convex portion 8 of the present invention is overlapped is formed on the footwear outer bottom portion 2b of the footwear 2. FIG. 6A is a schematic cross-sectional view taken along line FF of FIG. FIG. 6B is a schematic cross-sectional view taken along line GG of FIG. FIG. 7 is a perspective view showing an example in which a divided convex portion 23 for dividing the first convex portion 8 of the present invention is formed on the footwear outer bottom portion 2b of the footwear 2. FIG. 7A is a cross-sectional view taken along line HH of FIG. FIG. 7B is a schematic cross-sectional view taken along line II of FIG. FIG. 8 is a perspective view showing an example of the void convex portion 24 having the void portion 24a that forms the first convex portion 8 of the present invention on the footwear outer bottom portion 2b of the footwear 2. FIG. 8A is a cross-sectional view taken along line JJ of FIG. FIG. 8B is a schematic cross-sectional view taken along the line KK of FIG. FIG. 9 is a mounting convex portion including a mounting portion 25a for detachably mounting the first convex portion 8 of the present invention to the footwear inner bottom portion 2a or the footwear outer bottom portion 2b of the footwear 2 or the sole portion 5 of the foot portion 4. It is a perspective view showing the example of 25. FIG. 10A is a cross-sectional view illustrating an example of a multilayered shoe sole portion 26 in which the shoe sole structure 1 of the shoe 2 is formed in two layers. FIG. 10B is a cross-sectional view illustrating an example of a multilayered shoe sole 26 that forms the shoe sole structure 1 of the shoe 2 in two layers.

Hereinafter, an embodiment of the shoe sole structure 1 of the present invention will be described in detail with reference to FIGS. 1, 2, 4, 5, 5, 6, 6, 7, 8, 9, and 10.
In addition, rolling, which is weight shift shown in the present invention, means rotation, turning, which is weight shift, means turning, and pitching means kicking.
Hereinafter, rolling as weight shift, turning and pitching as weight shift are expressed.

  Next, a first embodiment of the present invention will be described with reference to FIG.

First, the technical idea of the present invention will be described with reference to FIG. 1 showing a front portion 3a or a back portion 3b of the present invention, which is a portion forming the first convex portion 8 of the present invention.
FIG. 1 is a top view illustrating each arch part on the front part 3a or the back part 3b of the present invention based on the skeleton diagram of the foot.
FIG. 1A is a schematic front sectional view showing an example of a normal lateral arch portion 12 and a metatarsal head.
FIG. 1B is a schematic front sectional view showing an example of a weakened lateral arch portion 12 and a metatarsal head.
FIG. 1 (c) shows the first convex portion 8 of the present invention formed on the front portion 3a of the present invention with respect to the weakened lateral arch portion 12 and the metatarsal head. 5 is a schematic front cross section showing an example of high support.
FIG. 1D shows that the first convex portion 8 of the present invention is formed on the back portion 3b of the present invention for the weakened lateral arch portion 12 and the metatarsal head, and the weakened horizontal arch portion 12 is raised. It is a schematic sectional drawing of the front which shows the example which supports.

Next, each arch of the foot shown in FIG. 1 includes an inner vertical arch portion 10, an outer vertical arch portion 11, and a horizontal arch portion 12.
The inner vertical arch portion 10 is formed from the calcaneus portion 17 to the first metatarsal portion 14, forms an arch, and has a function of supporting weight and a function of a kicking-out spring.
The lateral arch 12 prevents the metatarsal from the first metatarsal 14 to the fifth metatarsal 7 from slipping off, and protects the sensor function of the sole 5 from the foot. It is closely related to maintaining function and balance.
The outer vertical arch portion 11 is formed from the calcaneous portion 17 to the fifth metatarsal portion 7, walks and runs, and is closely related to the balance of the foot.

As a means for strengthening the weakened horizontal arch portion 12, the present invention supports the outer vertical arch portion 11 which is responsible for walking and running and is closely related to the balance of the foot, and supports the lateral arch portion 12 from the toe side portion 4b. An object of the present invention is to make sure that turning, which is a weight shift to the side of the toe part 4a, is executed surely, and that the balun of each arch is adjusted by repeating normal walking to kick with the toe part 5a.

As shown in FIG. 1A, the foot in a normal shoe shows a state in which the horizontal arch portion 12 is kept high, and normal walking achieves normal kicking.

However, as shown in FIG. 1B, the foot portion in the shoe causes a state in which the muscle balance function for supporting weight is broken, and in particular, since each metatarsal head is pressed from the side, the lateral arch portion 12 is pressed. And the looseness of the horizontal arch portion 12 loosens the outer vertical arch portion 11, and as a result, the inner vertical arch portion 10 is also weakened.
In the foot portion in this state, each metatarsal portion descends and flows to the small toe side portion 4b, which is a weight shift, so that the knee portion is opened outward, normal body holding is not possible, walking and standing. It is putting a burden on maintaining the posture.
At present, prolonged walking and living in a standing posture in a state where these arch portions are not functioning normally affect physical health.
Further, the continuous walking in the unusual posture disturbs the balance of each arch, so that the entire sole 5 is weakened.
In addition, aging weakens the lateral arch portion 12 and shows a tendency for the tread portion to flow outward and spread, but a deformation may occur in which the width of the tread portion increases inward.
In particular, the skeleton of the heel portion 5c has a bone structure that easily falls down inside, so that the inner vertical arch portion 10 is weakened, the balance of the arch is lost, and the weight flows outside, so it is correct as the stride length decreases. He cannot walk, causing dysfunction of the whole body from legs to legs and from legs to hips.

In general, correct walking is performed by moving the weight to the toe side 4b after landing and moving the weight to the toe side 4b and the toe to side after landing. 4a is maintained by the action of twisting to move the weight.
In other words, the operation performed on the sole 5 is a highly automated operation in which a large number of ligaments and skeletons are managed in a complicated manner, and the inner vertical arch 10 absorbs the impact of landing, and loses weight. Unless it is recognized that a series of motions of moving from the small toe portion side 4b to the thumb toe portion 4a by turning, which is weight shift, and kicking out with the thumb is a complicated and three-dimensional motion. No.
This movement to shift the weight reduces the function of the spring when kicking out when the function of absorbing shock is weakened, and normal walking assuming normal kicking is not performed, so execute a walking style that moves forward It can not do it and puts an extra burden on the body.

In the first place, walking is an operation of moving forward, and it is still assumed that a kicking operation is performed, regardless of whether the walking is landing from the heel portion 5c or the entire landing portion 5 of the foot.
That is, it is natural that the walking based on the kicking operation is based on the premise that the turning, which is the weight shift from the little toe side portion 4b to the toe side portion 4a, is smoothly and promptly performed.

In addition, the kick-out operation does not hinder the bending of the joints of the MP line 13 which is the metatarsal connection of the five metatarsals and the toes, which are the parts that bend when the toe is attached to the ground and the heel is raised, To kick the ground with the thumb 5a.
The importance of the MP line 13 is evident in that the skin of the ball of the thumb and the ball of the little toe is formed thicker in order to respond to the magnitude of impact when landing or kicking out.
The problem is that the function of the MP joint is weakened and hindered due to the weakening of the lateral arch 12.
In other words, if the lateral arch portion 12 is weakened, the arch structure slides down and becomes linear, so that the kick-out function is lost, and the weight shift from the little finger side 5b to the thumb side 5a is not executed. The repetition of walking in a state where it is not possible to further promote weakening of the foot 4.

As shown in FIG. 1A, the normal horizontal arch portion 12 is distorted and functions as a spring.
As shown in FIG. 1 (b), the weak lateral arch portion 12 becomes linear and the toe side 4b slides down, so that the weight shift from the toe side 4b to the toe side 4a. Cannot be performed smoothly.
As shown in FIG. 1C, the book is a part where the foot 4 and the fourth metatarsal part 6 and the fifth metatarsal part 8 in the footwear inner bottom part 2a of the footwear 2 abut or are located. The first convex part 8 of the present invention is formed on the front part 3a of the present invention, and the turning which is the weight shift to the side part 4a of the toe to which the weakly slid down horizontal arch part 12 is lifted and the height difference is applied. Is implemented smoothly.
As shown in FIG. 1 (d), the back part of the present invention, which is the part where the fourth metatarsal part 6 and the fifth metatarsal part 7 of the foot part 4 located on the footwear outer bottom part 2 b of the footwear 2 are located 3b, the first convex body 8 of the present invention is formed and the height of the first convex body 8 of the footwear 2 is increased to apply a height difference, so that the turning, which is the weight transfer to the toe side 4a, is performed smoothly. This is to realize the execution.
In other words, the first convex portion 8 of the footwear outer bottom portion 2b of the footwear 2 of the present invention allows the footwear 2 to smoothly or promptly execute the three-dimensionally twisting operation of deforming the foot portion 4. It is the purpose.

  Next, a second embodiment of the present invention will be described with reference to FIG.

FIG. 2 is a schematic top view illustrating the foot portion 4 and the skeleton of the footwear 2 and showing an example in which the first convex portion 8 of the present invention is formed on the front portion 3a or the back portion 3b of the present invention.
FIG. 2A is a cross-sectional view taken along the line CC of FIG. 2. FIG. 2B is a schematic side view showing a skeleton of the toe side 4 a of the foot 4.
FIG. 2C is a schematic side view showing the skeleton of the small toe side 4 b of the foot 4.
FIG. 2D is a schematic rear view showing the skeleton of the heel side 4 c of the foot 4.

First, as shown in FIGS. 2 and 2 (a), (b), (c), and (d), the leg portion includes a thick tibia portion 20 and a thin fibula portion 19.
In addition, the thick tibia 20 is responsible for supporting the weight mainly from the talus 30 to the first metatarsal part 14, the second metatarsal part 15, and the third metatarsal part 16.
In addition, the fibula portion 19 is involved in the fourth metatarsal portion 6 and the fifth metatarsal portion 7 from the calcaneus portion 17 and has a function of maintaining the balance of the foot portion 4 during walking or running.
The calcaneus 17 is connected to the inner longitudinal arch 10 and the outer longitudinal arch 11 and supports the talus 18, the fibula 19, and the tibia 20 at the upper part, and is responsible for the balance of weight shift, but it is difficult to walk. It shows a structure that tends to fall inward because it is responsible for balance.
The weight balance is such that the heel side 4c supports 50%, the toe side 4a and the toe side 4b support 25% each, and the inner vertical arch 10, the outer vertical arch 11, and the horizontal arch 12 are supported. It is said that the weight is dispersed.

In other words, the skeleton of the foot and leg is composed of a large number of ligaments and muscles and functions, supporting the upper part from the foot, and performing functions such as walking and running. It is a motion that is almost completed in the process of evolution.
However, the current foot environment has been gained by walking barefoot on natural uneven terrain because it is tightened with footwear with a flat bottom structure and walking on hard flat ground. Structure and function are inhibited.

The present invention forms a first convex body portion 8 at a portion where the fourth metatarsal portion 6 and the fifth metatarsal portion 7 of the foot portion 4 of the footwear 2 are located and at a portion where the foot portion 4 abuts, By applying the high first convex portion 8, the turning, which is the weight transfer from the toe side portion 4b to the toe side portion 4a during walking and running, is surely executed.
As a result, normal walking and running can be realized by executing pitching on the thumb side 4a, which is the purpose of walking and running.
Further, the first convex body portion 8 of the present invention is formed on the portion of the fourth metatarsal portion 6 and the fifth metatarsal portion 7 which have a function of maintaining the balance of the foot portion 4 during walking or running. Therefore, a new structure that supports the outer part of the horizontal arch high and also supports the outer vertical arch is realized.
Furthermore, realization of normal walking and running leads to acquisition of a normal arch balance, and realizes that the healthy sole 5 forms a healthy body.

As shown in FIGS. 2 and 2 (a), (b), (c), and (d), the foot 4 of the footwear 2 has a small toe side 4b associated with walking and running. The first convex part 8 is formed on the front part 3a or the back part 3b, which is the part where the fourth metatarsal part 6 and the fifth metatarsal part 7 are located, and by applying the height difference, the small toe side The rider rides by rolling, which is free weight movement to the part 4b, and realizes turning, which is a quick and reliable weight transfer to the thumb part side part 4a located in front of the small toe part side part 4b. By repeating the normal walking and running of kicking forward in 5a, normal arch balance and strengthening of the foot muscles are promoted, and the ability to support weight is realized.

That is, as shown in FIGS. 2 and 2 (a), (b), (c) and (d), the fourth metatarsal part 6 and the fifth metatarsal part 7 of the toe part side part 4b are From the cuboid bone 21 to the calcaneus 17, the ligament forms a thin fibula 19, forming an ankle, preventing the talus 18, which is the ankle, from falling inward during walking, running, and standing. The function of the sole 5 which is weakened by habitual walking and running by forming the first convex body portion 8 in a part which is a system which plays a role of maintaining body balance and walking and running. The purpose is to strengthen the arch and to properly guide the arch balance.

Next, as shown in FIG. 2 and (a), (b), (c) and (d) of FIG. 2, the front part 3 a of the present invention The fourth metatarsal part 6 and the fifth metatarsal part 7 are in contact and located.
A feature of the present invention is that the first convex portion 8 is formed on the front portion 3a of the footwear inner bottom portion 2a of the footwear 2.
For example, the front portion 3a of the footwear inner bottom 2a of socks, the front portion 3a of the footwear inner bottom 2a of sandals, the front portion 3a of the footwear inner bottom 2a of high heels, the front portion 3a of the footwear inner bottom 2a of sneakers, and the footwear inner of slippers. Materials and shapes suitable for the characteristics of each footwear 2 such as the front portion 3a of the bottom 2a are selected and used, and the first convex portion 8 of the present invention is expressed as a three-dimensional shape.

Next, as shown in FIGS. 2 and 2 (a), (b), (c) and (d), the back portion 3b of the present invention The front part 3a, which is the part where the fourth metatarsal part 6 and the fifth metatarsal part 7 come into contact with each other and is located, is a part located on the footwear outer bottom part 2b of the opposing footwear 2.
A feature of the present invention is that the first convex portion 8 is formed on the back portion 3b of the footwear outer bottom portion 2b of the footwear 2.
For example, various types of footwear 2 such as a back portion 3b of an outer bottom portion 2b of socks, a back portion 3b of an outer bottom portion 2b of sandals, a back portion 3b of an outer bottom portion 3 of sneakers, and a back portion 3b of an outer bottom portion 2b of slippers. A material and a shape suitable for the feature are selected and used, and the first convex portion 8 of the present invention expresses a three-dimensional shape and is not specified.
Further, the first convex portion 8 of the present invention may be formed on both surface portions of the front portion 3a or the back portion, and is not specified. The first convex portion 8 formed on the front portion 3a or the back portion is not specified. May be formed of different shapes and different materials, and it is a matter of course that a selection matching the function desired by the user is made and formed.
Also, the feature of the front part 3a or the back part of the present invention is that the joint of the MP line 13 which is a part of the metatarsal bone of the five metatarsal bones and the toe part that bends when the toe is put on the ground and the heel is raised. Is formed in a portion that does not affect the bending operation.

Next, as shown in FIG. 2 and FIG. 2A, the first convex portion 8 of the present invention is configured such that the first convex portion 8 forms the first convex portion peripheral portion 8a and the first convex portion 8a. 8 shows an example in which a structure that complements No. 8 is adopted.
The first convex portion peripheral portion 8a works to smooth the structure of the surface of the first convex portion 8, does not specify that the first convex portion 8 is reinforced, or the like, and does not specify the technical concept of the present invention. Should not be impaired.

Next, as shown in FIGS. 2 and 2A, the first convex body 8 of the present invention shows an example in which three cut portions 8b are formed.
The cut portion 8b is a feature of the first convex body portion 8 of the present invention, in which rolling, which is weight shifting, and turning, which is weight shifting, which are operated by the footwear bottom 3 of the footwear, are soft operations. It plays the role of complementing the operation originally developed.
Also, three cut portions 8b are shown, but the present invention is not limited thereto.

Next, a feature of the first convex portion 8 of the present invention is that it is formed in a three-dimensional shape on the front portion 3a or the back portion 3b.
The present invention is characterized in that the functions required according to the state of the user's foot 4 are various, and the first convex body 8 is formed on the front portion 3a or the back portion 3b.
In addition, the shape, size, height, hardness and the like that meet the conditions of the user's foot 4 cannot be uniform, and it is natural to provide various shapes corresponding to the conditions of the user. It is expressed as an arbitrary part.
Further, the first convex body 8 feature of the present invention is a usage form applicable to various foot portions 4 of the user and applicable to the footwear outer bottom portion 2b or the footwear inner bottom portion 2a of any footwear 2. The first convex portion 8 is formed on the front portion 3a or the back portion 3b.
In addition, the first convex portion 8 applied to all types of footwear 2 is not necessarily uniform in specifications that meet required conditions such as shape, size, height, and hardness, and naturally corresponds to the conditions of footwear.
For example, general shoes such as leather shoes, sandals, insoles, socks, insoles, slippers, tabi, socks, sandals, etc. are symmetrical and cannot be specified.
In addition, it is natural that the first convex body portion 8 is required to have various correspondences such as a shape and hardness matching the state of the user's foot portion 4, and materials to be used are suitably selected and specified. It is not specified.
Although the first convex portion 8 of the present invention is shown as an example integrally formed with the footwear 2, the first convex portion 8 is provided with a detachable means and attached to the footwear 2 or the foot 5 for use. The form which performs is also suitable.
The feature of the present invention is that the first convex body 8 is formed on the footwear inner bottom portion 2a or the footwear outer bottom portion 2b of any footwear 2, and the height difference is applied from the toe side portion 4b to the toe side portion 4a. Turning, which is a quick weight shift, is realized with the first convex portion 8 as a fulcrum.

  Next, a third embodiment of the present invention will be described with reference to FIG.

FIG. 3 is a schematic perspective view of the footwear 2 showing an example in which the first convex portion 8 of the present invention is formed on the front portion 3a of the footwear inner bottom portion 2a of the footwear 2.
FIG. 3A is a schematic cross-sectional view taken along line DD of FIG. FIG. 2 is a schematic cross-sectional view in the longitudinal direction showing an example in which a foot 4 on a footwear inner bottom 2a of the footwear 2 is in contact with a first convex body 8 of the present invention.
FIG. 3 (b) shows an example of a state in which the foot 4 on the footwear inner bottom 2a of the footwear 2 performs rolling for weight shift with the first convex portion 8 as a fulcrum, and a schematic cross section in the lateral direction for explanation. FIG.
FIG. 3C illustrates an example of a state in which the foot 4 on the footwear inner bottom 2a of the footwear 2 turns with the first convex body 8 as a fulcrum, which is a shift in weight. It is sectional drawing.
FIG. 3D is a cross-sectional view in the lateral direction illustrating and illustrating an example of a state in which the feet 4 at the footwear inner bottom 2a of the footwear 2 are pitched.

First, as shown in FIG. 3, the feature of the present invention is that a three-dimensional first convex body 8 is formed on the front part 3 a of the footwear inner bottom part 2 a of the footwear 2.
In addition, the feature of the present invention is that the foot 4 reliably performs the turning, which is the weight shift from the toe side 4b to the toe side 4a, using the first convex body 8 as a fulcrum. It becomes possible to unconsciously kick out at the part side part 4a, and the foot itself executes a correct walking forward.
The first convex portion 8 shown in FIG. 3 is a hemispherical shape, but is not specified, and is formed by suitably selecting a shape such as height and hardness required by the user.

Next, as shown in FIG. 3 (a), the front part 3a of the present invention is a part where the foot part 4 abuts or is located on the fourth metatarsal part 6 and the fifth metatarsal part 7.
Further, the first convex portion 8 is formed on the front portion 3a.
Further, the first convex body 8 formed on the footwear inner bottom 2a of the footwear 2 is characterized in that a solution is achieved by directly lifting the weakly slid-down horizontal arch portion 12 from the inside of the footwear 2 to support it. Things.
The first convex portion 8 is to be formed in a three-dimensional shape.
Further, the first convex portion 8 forms a first convex portion peripheral portion 8a that engages with the first convex portion 8, and has a function of smoothly forming and strengthening the periphery of the first convex portion 8. The accompanying specification is suitably selected, and the first convex body 8 is formed so as to have a function of gently contacting the sole of the foot.
In addition, the first convex portion peripheral portion 8a is not particularly specified in terms of shape and material, but is formed of a structure and material that complements the first convex portion 8.

Next, the feature of the present invention is that the first convex portion 8 of the present invention is formed on the front portion 3a of the present invention, and the first convex portion 8 of the front portion 3a is formed to be higher. Since the weight is lifted to the first convex portion 8 while rolling, which is the weight shift that has moved to the small toe side portion 4b, the lifted weight falls to the lower toe portion side portion 4a. Is executed naturally.
Further, the front part 3a is a part outside the middle foot part and is a part which does not hinder the bending on the MP line 13 which is important for the kick-out operation with the forefoot part.
In other words, the first convex body portion 8 of the present invention has a three-dimensionally twisting motion of the foot portion 4 which is a weight shift shown in FIG. 3B with the first convex body portion 8 as a fulcrum. This makes it possible to smoothly or promptly execute the turning, which is the weight shift shown in FIG. 3 (c), and the pitching shown in FIG. 3 (d).

Generally, walking is described as landing from the heel.
First, the weight that has landed goes to the side of the little toe, but it flows outward in the weakened foot 4 and the kicking out in the toe is not reliably performed. A walk like a robot moving forward and down will cause walking, and uneconomic walking causes fatigue and impairs the balance of the body structure.
The first convex portion 8 of the present invention is not limited to landing from the heel, and the weight that moves on the soles induces rolling, which is a weight shift to ride on the first convex portion 8. .
In other words, the weight moves regardless of the landing, and the moved weight moves to the thumb side 4a, which is the opposite direction when it comes into contact with the high first convex body 8, and rides up. It moves to the thumb side part 4a which is a downward direction.
This operation is a natural operation that is not conscious, and the repetition of kicking out at the toe part side 4a reinforces the inner vertical arch, and the strengthened inner vertical arch realizes normal walking.

Next, as shown in FIGS. 3 (b), (c) and (d), the present invention provides a fourth metatarsal part of the foot part 4 in order to prevent the outward flow of weight. The first convex part 8 is formed on the front part 3a, which is the part where the sixth and fifth metatarsal parts 7 abut, and the first convex part 8 smoothly lifts the weight that has landed and moved to the front part 3a. Rolling (b), which is a weight shift, is performed, and turning, which is a weight shift that quickly flows to the lower toe part side 5b as a fulcrum of the first convex part 8 that is a weight shift on the high first convex part 8, is executed. (C) Pitching (d) in which the toe part side portion 5b kicks out the weight flowing from a high position with a smooth motion as if it were a natural flow.

In addition, since the first convex portion 8 formed on the front portion 3a of the present invention shown in FIG. 3 is formed on the footwear inner bottom portion 2a of the footwear 2, it is characterized in that it directly acts on the sole of the user. I do.
In addition, since the first convex body portion 8 is used to raise the front portion 3a, it is preferable that the foot portion is not burdened, and a cushioning property is provided by adopting an elastic material or a hollow structure. Consideration is required.
In addition, since consideration is required so that the user's feet can be worn smoothly, it is preferably formed inside a lining covering the surface.
The first convex body 8 of the present invention shown in FIG. 3 is the first convex body 8 formed on the footwear inner bottom 2a of the footwear 2 and directly abutting on the foot 4 of the user. It goes without saying that the height, hardness, size and shape according to the state of the portion 4 are suitably selected and formed.
Also, existing materials are suitably selected and used as the materials to be used.
Further, the first convex body portion 8 of the present invention may be exposed and formed on the footwear inner bottom portion 2a of the footwear 2, may be formed to be covered, may be formed to be built-in, and is preferably formed. The use is to be selected and formed.

        Next, a fourth embodiment of the present invention will be described with reference to FIG.

FIG. 4 is a schematic perspective view of the footwear 2 showing an example in which the first convex portion 8 of the present invention is formed on the back portion 3b of the footwear outer bottom 2b.
FIG. 4A is a schematic cross-sectional view taken along line EE of FIG. FIG. 3 is a schematic longitudinal sectional view showing an example in which a first convex body portion 8 of the present invention is formed on a back portion 3b of a footwear outer bottom portion 2b of the footwear 2;
FIG. 4 (b) shows an example of a state in which the foot 4 in the footwear 2 performs rolling, that is, the weight shift of the foot 4 in the footwear 2, with the first convex body 8 in the footwear outer bottom 2b of the footwear 2 as a fulcrum. It is sectional drawing of a direction.
FIG. 4C shows an example of a state in which the foot 4 in the footwear 2 is turned in weight, with the first convex body 8 on the outer bottom 2b of the footwear 2 serving as a fulcrum. It is sectional drawing of a hand direction.
FIG. 4D is a cross-sectional view in the lateral direction illustrating an example of a state in which the foot portion 4 of the footwear 2 is pitched with the first convex portion 8 on the footwear outer bottom portion 2b of the footwear 2 as a fulcrum. is there.

First, as shown in FIG. 4, a feature of the present invention is that a three-dimensional first convex body 8 is formed on the back portion 3 b of the footwear outer bottom 2 b of the footwear 2.
In addition, the first convex portion 8 ensures that the turning, which is the weight shift from the toe side portion 4b of the footwear 2 to the thumb side portion 4a, is performed with the first convex portion 8 as a fulcrum. Things.
In addition, since the twisting movement, which is a normal weight shift in the footwear 2, is reliably performed with the first convex portion 8 as a fulcrum, kicking out on the toe side portion 4a can be naturally performed, and It is to realize the correct walking to go to.

Next, as shown in FIG. 4A, the feature of the first convex portion 8 formed on the back portion 3b of the present invention is that it is formed in a three-dimensional shape on the footwear outer bottom portion 2b of the footwear 2.
In this embodiment, the first convex portion 8 having a hemispherical shape is shown, but is not specified.
In addition, although the first convex portion 8 does not have the first convex portion surrounding portion 8a that engages with the first convex portion 8, the first convex portion 8 is provided on an outsole such as sneakers. When forming the portion 8, it is possible to improve the function by forming the first convex portion surrounding portion 8a, and does not specify the formation of the first convex portion surrounding portion 8a, but to the required function. It is natural to respond.

The feature of the present invention is that the first convex portion 8 of the present invention is formed on the back portion 3b of the present invention, and the back portion 3b is formed so as to be higher. Since the weight is lifted by the first convex portion 8 while rolling, which is the weight shift, the lifted weight falls to the lower toe side 4a. The purpose is.

Next, FIG. 4A is a cross-sectional view of the footwear 2 showing an example in which the first convex portion 8 of the present invention is formed on the back portion 3b of the present invention.
As shown in FIG. 3A, the first convex portion 8 formed on the footwear outer bottom portion 2b of the footwear 2 raises and supports the weakly slid down horizontal arch portion 12 directly above the outside of the footwear 2. It is characterized by trying to solve.
In other words, the first convex portion 8 of the present invention is a three-dimensional rolling operation in which the twisting operation of the footwear 2 is a weight shift shown in FIG. 4B using the first convex portion 8 as a fulcrum. 4 (c), and the pitching shown in FIG. 4 (d) can be executed smoothly or promptly.

Generally, walking is described as landing from the heel.
First, the weight that has landed goes to the side of the little toe, but it flows outward in the weakened foot 4, and the kicking out in the toe 5a is not reliably performed, resulting in an ambiguous kicking out. A walk like a robot that lifts legs and legs and moves forward and down is caused, and uneconomical walking causes fatigue and disturbs the balance of the body structure.
The first convex portion 8 of the present invention is not limited to the landing from the heel portion 5 c, and the moving weight at the sole 5 invites rolling, which is a weight shift to ride on the first convex portion 8. Things.
In other words, the weight slightly shifts regardless of the landing, and the weight that has moved moves toward the thumb side 4a, which is the opposite direction when it comes into contact with the high first convex body 8, and rides on it. To the lower toe side 4a.
This operation is a natural operation that is not conscious, and the repetition of kicking out at the thumb 5a, which is this operation, reinforces the inner vertical arch 20, and the strengthened inner vertical arch 20 realizes normal walking.

Next, as shown in FIGS. 4 (b), (c) and (d), the fourth metatarsal part of the foot part 4 is used to prevent the outward flow of weight shift. The first convex body portion 8 is formed on a portion B corresponding to the portion where the sixth metatarsal portion 6 and the fifth metatarsal portion 7 abut, and the weight that has landed and moved to the back portion 3b is transferred to the first convex body portion 8. Performs the rolling (b), which is a weight shift that smoothly lifts, and quickly moves to the lower toe side portion 5b as a fulcrum of the first convex portion 8 that is a weight shift on the high first convex portion 8. A certain turning (c) is executed, and the pitching (d) in which the toe part side part 5b kicks out the weight flowing from a high position with a smooth motion as a natural flow is surely executed.

In addition, since the first convex portion 8 formed on the back portion 3b is formed on the footwear outer bottom portion 2b of the footwear 2, it is characterized in that it does not directly act on the sole of the user.
In addition, since the back portion 3b is used in such a manner that the first convex body portion 8 supports the foot portion 4 higher, the load is not directly applied to the foot portion 4; Consideration for the department is required.
In addition, consideration must be given to the smooth operation of the user's foot, so that consideration should be given to preventing the surface from slipping.

Further, the first convex portion 8 of the present invention shown in FIG. 4 is formed on the footwear outer bottom portion 2b of the footwear 2, and the height, hardness, and size are selected according to the condition of the foot portion 4 of the user. It is natural to form.
Also, existing materials are suitably selected and used as the materials to be used.
The first convex portion 8 of the present invention shown in FIG. 4 has a structure formed on the footwear outer bottom portion 2b of the footwear 2 and does not directly contact the foot portion 4 of the user. Naturally, the height, hardness and size are selected and formed according to the state.
Also, existing materials are suitably selected and used as the materials to be used.

Next, a fifth embodiment will be described with reference to FIG.

FIG. 5 is a perspective view illustrating an example of the shape of the second convex body 9 of the present invention.
FIG. 5A is a front view illustrating an example of the forefoot side surface 9 c of the second convex body 9.
FIG. 5B is a side view showing an example of the heel side surface 9 d of the second convex body 9.
FIG. 5C is a side view illustrating an example of the side surface 9 e of the second convex body 9 on the side of the thumb.
FIG. 5D is a side view showing an example of the side surface 9 f of the toe part of the second convex body 9.
FIG. 5E is a top view illustrating an example of the second convex body 9.

  First, the first convex portion 8 of the present invention is not formed in a specific shape, but the second convex portion 9 is shown as an embodiment that embodies the technical idea of the present invention in more detail. It is for explanation.

In addition, as shown in FIG. 5, the second convex portion 9 includes a portion where the fourth metatarsal portion 6 and the fifth metatarsal portion 7 of the foot portion 4 of the footwear 2 are in contact with each other as shown in FIG. The front portion 3a or the front portion 3a of the present invention, which is the portion located, is formed on the back portion 3b of the present invention, which is the portion located on the footwear outer bottom portion 2b of the opposing footwear 2.
Further, as shown in FIG. 5, the second convex portion 9 includes a second convex portion peripheral portion 9 engaged with the second convex portion 9.
a is formed so as to cover the second convex portion 9, and the corners are formed so as to be soft and smooth. The formation part may be formed in this way, and this is not specified.

Next, in the second convex part 9 shown in FIG. 5A, the height of the toe part side part 4a is lower than the height of the little toe part side part 4b in the shape of the forefoot part side surface part 9c. An example in which it is formed is shown.
In the second convex body 9 shown in FIG. 5B, the height of the toe side 4a is lower than the height of the toe side 4b in the shape of the heel side surface 9d. The example shown in FIG.
In addition, the second convex body 9 shown in FIG. 5C has a configuration in which the height of the toe side 4a is higher than the height of the heel side 4cb in the shape of the side surface 9e of the thumb. The example shown in FIG.
Further, in the second convex body portion 9 shown in FIG. 5D, the height of the toe portion side portion 4b is higher than the height of the heel portion side portion 4c in the shape of the toe portion side surface portion 9f. The example shown in FIG.
5A and 5B are formed such that the area of the forefoot side surface 9c is larger than the area of the heel side surface 9d. Here is an example.
5C and 5D are formed such that the area of the toe side surface 9e is smaller than the area of the toe side surface 9f. Here is an example.
FIG. 5E is a top view illustrating an example of the second convex body 9.
FIG. 5 shows an example in which the second convex portion 9 forms a second convex portion peripheral portion 9a that engages with the second convex portion 9.

Next, FIG. 5 shows an example in which the second convex portion 9 forms a second convex portion peripheral portion 9a that engages with the second convex portion 9.
As shown in FIG. 5 and (a), (b), (c), (d), and (e) of FIG. 5, the second convex portion 9 has a second convex portion peripheral portion 9a formed therearound. ing.
The second convex portion peripheral portion 9a is a specification that complements the function of the second convex portion 9, and is made of a different material, but the same material may be used.
In addition, the second convex portion 9 is formed on the footwear inner bottom portion 2a or the footwear outer bottom portion 2b of the footwear 2, but the material and shape, etc., which match the intended use, are suitably selected and specified, and are specified. Do not.

Next, as shown in FIG. 5 and (a), (b), (c), (d), and (e) of FIG. 5, the second convex portion 9 has two cut portions in the lateral direction. 9b is shown, but one, four, or five locations are not limited.
In addition, the cut portion 9b is a feature of the present invention, in which rolling, which is weight shifting, and turning, which is weight shifting, are three-dimensional operations, and expand the effect of smoothing the operations.

Further, as shown in FIGS. 5B and 5C, in the side shape, the toe part side part 4a and the toe part side part 4b are high and the heel part side 4c is inclined low, so that the weight that has moved. It is a structure that rides on a slope that is movement and smoothes rolling that is weight movement.
Further, as shown in FIG. 5 (b), the small toe portion 5b is high in the front shape and is inclined low to the toe side portion 4, so that the turning, which is the weight transfer to the toe portion side 4a, is surely performed. This is the structure to be executed.

That is, the shape of the second convex part 9 of the present invention shown in FIG. 5 is a structure in which the second convex part 9 is arranged on the fourth metatarsal part 6 and the fifth metatarsal part 7 of the foot part 4. It is possible to regain a normal lateral arch portion 12 that normally guides the weight in the metatarsal portion during walking and running without being affected by landing from the side of the heel.

Furthermore, the horizontal arch portion 12 slid down in a state where the foot portion in the standing position is inclined outward is corrected into a normal horizontal arch by the second convex body portion 9 of the present invention supporting the horizontal arch portion 12. Work to improve the balance of weight support, and reduce the burden on the ankle, knee and body.

Next, it is preferable that the material of the second convex portion 9 and the second convex portion peripheral portion 9a constituting the second convex portion 9 of the present invention is formed of an elastic material.
In addition, as for the material, an existing material is used, and it is natural that a selection that matches the purpose of use, such as a combination of materials and shapes that match the function desired by the user and a shape, is not specified here. .
Further, the second convex portion 9 serves to connect the second convex portion peripheral portion 9a to the footwear inner bottom portion 2a and the footwear outer bottom portion 2b, and also serves to protect the second convex portion 9. is there.
In addition, as the material, an existing material is used, and it is natural that a selection matching the purpose of use, such as a combination and a shape of the material, is made, and the material is not specified here.

Next, a sixth embodiment will be described with reference to FIG.

FIG. 6 is a perspective view showing an example in which the overlapping convex portion 22 on which the first convex portion 8 of the present invention is overlapped is formed on the footwear outer bottom portion 2b of the footwear 2.
FIG. 6A is a schematic cross-sectional view taken along line FF of FIG.
FIG. 6B is a schematic cross-sectional view taken along line GG of FIG.

Although the overlapping convex part 22 of the present invention shown in FIG. 6 shows an example formed on the footwear outer bottom part 2b of the footwear 2, it may be formed on the footwear inner bottom part 2a of the footwear 2 and is not specified. .
Further, the overlapping convex portion 22 of the present invention shown in FIG. 6 shows the first convex portion 8 of the present invention formed by doubly overlapping, but may be triple or quadruple. Absent.
In addition, the present embodiment is a use form in which the foot 4 of the user is directly supported, and it is preferable that the footwear 2 is appropriately selected and used in a shape and a height which are easy to wear.

Next, the overlapping convex portion 22 shown in FIG. 6A is a cross-sectional view taken along the line FF of FIG. 6, and the first convex portion 8 formed on the footwear outer bottom portion 2b of the footwear 2 has two layers. An example is shown in which the first layer has three bag bodies 22a arranged in the first layer and the second layer is covered with a jacket 22b made of an elastic material.
Further, the overlapping convex portion 22 shown in FIG. 6 (a) is formed so that the toe portion side portion 4b is formed to be high to prevent the weight of the foot portion 4 of the user from flowing outward and to the first layer. Since the bag body portion 22a of the portion 26a gently supports the body weight and works to realize turning, which is a soft weight shift, it is suitable for shoes used everyday.
Further, the bag body portion 22a has a configuration in which the size is reduced in three stages from the small toe portion side portion 4b toward the thumb toe portion side portion 4a.
Although the bag 22a is shown as a gas-sealed one, a gel, a liquid, a solid, or the like may be used, and the contents are not specified.
Also, an example is shown in which the first convex portions 8 are stacked in two layers, but three or four layers are not specified.

Next, the overlapping convex portion 22 shown in FIG. 6B is a cross-sectional view taken along line GG of FIG. 6, and the first convex portion 8 formed on the footwear outer bottom portion 2b of the footwear 2 has two layers. The first layer has three bags 22a arranged in the first layer, and the second layer is covered with an elastic material.
6 (b), the heel side 4c is low and the forefoot side 4d is high, and the weight of the user's foot 4 is reduced to the toe side 4b. Rolling weight movement.
Further, the bag body portion 22a of the first layer gently supports the weight of the body and works to realize rolling, which is soft weight shift.
Further, the bag body portion 22a has a configuration in which the size is reduced in three stages from the small toe portion side portion 4b toward the thumb toe portion side portion 4a.
Although the bag 22a is shown as a gas-sealed one, a gel, a liquid, a solid, or the like may be used, and the contents are not specified.
Also, an example is shown in which the first convex portions 8 are stacked in two layers, but three or four layers are not specified.

In the present invention, it is natural that the specification combined with the divided convex portion 23 and the mounting convex portion 25 and the like is used, and the function which is combined with the feature of the first convex portion 8 of the present invention is created, and the shape desired by the user is obtained. It can be formed in a.
Further, in the present embodiment, description will be made based on the first convex body 8, but it is natural that the second convex body 9 is formed on the overlapping convex body 22.

  Next, a seventh embodiment will be described with reference to FIG.

FIG. 7 is a sectional view showing a divided convex portion 23 for dividing the first convex portion 8 according to the present invention.
FIG. 9 is a perspective view showing an example of a divided convex body portion 23 formed in FIG.
FIG. 7A is a cross-sectional view taken along line HH of FIG.
FIG. 7B is a cross-sectional view taken along the line II of FIG.

As shown in FIGS. 7A and 7B, an example in which the divided convex portion 23 of the present invention is formed on the footwear outer bottom portion 2b of the footwear 2 will be described.

Next, as shown in FIG. 7A, the divided convex portions 23 are formed by arranging the first convex portions 8 formed on the footwear outer bottom portion 2b of the footwear 2 in three rows in the longitudinal direction so as to form cubes 23a having different elasticity. It is sectional drawing of the short direction which shows the example of FIG.
Also, as shown in FIG. 7A, the shape of the divided convex portion 23 is formed by selecting a shape corresponding to the function required by the user, and the shape, number, or characteristics such as hardness are specified. It does not do.
Further, as shown in FIG. 7A, the divided convex portions 23 are formed so that the size of the cube 23 is gradually reduced toward the thumb side portion 4a, so that rolling, which is a weight shift, can be easily performed. In addition, by forming the thumb side portion 4a thin, the speed of turning, which is weight shift, can be increased, which is a structure suitable for slow running shoes.
Further, the divided convex portion 23 may be formed on the footwear inner bottom 2a of the footwear 2, and it is natural that a smooth shape corresponding to the sole 5 of the user is selected and used.
Further, in this embodiment, an example is shown in which the cube 23a having different elasticity is formed in the footwear outer bottom 2b of the footwear 2 by being arranged in three rows in the longitudinal direction. When formed on the footwear inner bottom 2a, they are arranged side by side in the short direction, and the divided convex portion 23 having a structure in which the toe side 4d is formed to be thicker prevents the weight from moving outward and causes the foot 5 to move. Since the slip in the shoe is prevented, the burden on the foot 5 is reduced.

Next, as shown in FIG. 7B, the divided convex portion 23 is a cross-sectional view of the cube 23a in the lateral direction.
The cube 23a is formed so as to be gradually smaller from the toe part side part 4b to the toe part side part 4a, thereby preventing the weight of the user's foot part 4 from flowing outward and causing the toe part to move. Turning, which is a weight shift from the part side part 4b to the thumb part side part 4a, is smoothly executed.
Also, as shown in FIG. 7B, the divided convex portion 23 is formed so that the toe portion side portion 4b is formed to be higher and the hardness of the cube 23a is gradually reduced from the toe portion side portion 4b. This prevents the weight of the user's foot 4 from flowing outward, and also smoothly executes the turning, which is the weight transfer from the little toe side 4b to the thumb toe 4a.
For example, the existing running seeds employ various structures for the bottom structure of the ground contact surface. However, since the divided convex portions 23 of the present invention can be formed in respective shapes, the function of the existing running seeds can be improved. Can be easily improved.

In the present invention, the specifications in combination with the overlapping convex portion 22, the void convex portion 24, the mounting convex portion 25, and the like are natural, and the features of the first convex portion 8 and the second convex portion 9 of the present invention are as follows. It is characterized by being able to create a fused function and form it into the shape desired by the user.
Further, in the present embodiment, the description will be made based on the first convex body 8, but it is natural that the second convex body 9 is formed on the divided convex body 23.

  Next, an eighth embodiment will be described with reference to FIG.

FIG. 8 is a perspective view showing an example of the void convex portion 24 having the void portion 24a that forms the first convex portion 8 of the present invention on the footwear outer bottom portion 2b of the footwear 2.
FIG. 8A is a cross-sectional view taken along line JJ of FIG.
FIG. 8B is a cross-sectional view taken along line KK of FIG.

Although the gap convex portion 24 of the present invention shown in FIG. 8 is an example formed on the footwear outer bottom portion 2b of the footwear 2, it may be formed on the footwear inner bottom portion 2a of the footwear 2. The gap 24a is formed in the one convex portion 8, and is not specified.
Further, the usage mode in which the user's foot 4 is supported by the first convex portion 8 formed on the footwear outer bottom portion 2b of the footwear 2 is preferably such that the footwear 2 has a shape and height that do not hinder walking and running. Preferably, it is selected and used.

Next, the gap convex portion 24 shown in FIG. 8A is a cross-sectional view in the lateral direction in which one gap portion 24a is formed in the first convex portion 8 formed on the footwear outer bottom portion 2b of the footwear 2. is there.
In addition, the gap 24a receives and mitigates the impact of landing when the vehicle is running, and at the same time, the small toe portion side 4b of the gap 24a is formed to be higher and thicker so that the impact at the time of landing can be absorbed by the toe portion 4a. Since the turning, which is the weight transfer, is quickly deployed, the energy efficiency at the time of running is improved, and the burden of twisting operation is reduced, so that the accumulation of fatigue of the sole 5 is prevented. It is suitable.
Further, since the gap portion 24a is formed so as to decrease in height toward the heel portion side portion 4c, it is possible to complement the rolling which is the weight shift to the small toe portion side portion 4b.
In addition, an example is shown in which the void portion 24a covers the side surface portion with the second convex portion peripheral portion 9a and is complemented with a smooth shape, but the portion or material to be covered with the second convex portion peripheral portion 9a is not specified. Instead, the material or part is suitably selected and formed.
Although the gap 24a is formed in one place, it is not limited to two places or three places. Further, the existing cavity theory is applied to the shape of the gap 24a. It is not specified in.

Next, the gap convex portion 24 shown in FIG. 8B is a longitudinal sectional view in which one gap portion 24a is formed in the first convex portion 8 formed on the footwear outer bottom portion 2b of the footwear 2. .
In addition, the gap 24a receives and mitigates the impact of the landing during traveling, and the forefoot side 4d of the gap 24a is formed to be high and thick, so that the impact at the time of landing can be absorbed by the toe side 4a. Since the turning, which is the weight transfer, is quickly deployed, the energy efficiency at the time of running is improved, and the burden of twisting operation is reduced, so that the accumulation of fatigue of the sole 5 is prevented. It is suitable.
Further, since the gap portion 24a is formed so as to decrease in height toward the heel portion side portion 4c, it is possible to complement the rolling which is the weight shift to the forefoot portion side portion 4d.

Further, as shown in FIG. 8, the void convex portion 24 of the present invention is formed on the footwear outer bottom portion 2b of the footwear 2 and an efficient cushion structure for protecting the foot portion 4 from impacts applied to the sole during running while protecting the foot portion 4 Turning, which is a quick weight shift, realizes efficient driving.
Further, an example is shown in which the void convex portion 24 of the present invention is formed on the footwear outer bottom portion 2b of the footwear 2, but may be formed on the footwear inner bottom portion 2a of the footwear 2.

In the present invention, the specifications in combination with the overlapping convex portion 22, the divided convex portion 24, the mounting convex portion 25, and the like are natural, and the characteristics of the first convex portion 8 and the second convex portion 9 of the present invention are as follows. It is characterized by being able to create a fused function and form it into the shape desired by the user.
Further, in the present embodiment, description will be made on the basis of the first convex body 8, but it is natural that the second convex body 9 is formed in the gap convex body 24.

  Next, a ninth embodiment will be described with reference to FIG.

FIG. 9 is a mounting convex portion including a mounting portion 25a for detachably mounting the first convex portion 8 of the present invention to the footwear inner bottom portion 2a or the footwear outer bottom portion 2b of the footwear 2 or the sole portion 5 of the foot portion 4. It is a perspective view showing the example of 25.

As shown in FIG. 9, the mounting convex portion 25 includes a mounting portion 25 a and a covering portion 25 b based on the second convex portion 9.
As shown in FIG. 9, the mounting convex portion 25 is connected to the footwear inner bottom 2 a or the footwear outer bottom 2
This is a usage form intended for simple use, not a specification formed in the footwear 2 in advance.

The mounting portion 25a or the outer cover portion 25b shown in FIG. 9 employs an existing bonding means and a peeling material, and is not particularly specified.

For example, since the features of the first convex portion 8 and the second convex portion 9 of the present invention can be added to the respective features of a commercially available insole, the respective effects are not disturbed.
Further, the present invention is easily and inexpensively attached to the middle or outer sole of the footwear to realize the effects of the first and second protrusions 8 and 9 of the present invention on the currently used footwear.
Also, it is to be detachably mounted on the sole 5 of the foot 4.
For example, in the case of using for walking training, when wearing with only one sole and walking in an eye-closed state, by applying the effect that the walking turns in the sole side direction without wearing, the left and right first convex body portions 8 or By combining the thickness, shape, hardness, and the like of the first convex portion 9, it is possible to realize the formation of the optimal footwear sole structure 1 for the user.
For example, the fall of the elderly lies in their inability to lift their feet.
In other words, the walking is a state in which the forefoot is not sufficiently lifted, which is evidence that the kicking is not sufficient.
Therefore, the problem can be solved by the footwear 2 having the first convex portion 8 or the first convex portion 9 of the present invention.
However, in a living environment where the shoes are taken off indoors, the wearing convex part 25 can be attached to the sole 5 and kicked out with the thumb 5a, so that the fall can be prevented.
In addition, by attaching to slippers or other indoor shoes, the present invention exerts the effect of preventing the fall from being double prevented.

In the present invention, the specifications in combination with the overlapping convex portion 22, the void convex portion 23, the divided convex portion 24, and the like are natural, and the features of the first convex portion 8 and the second convex portion 9 of the present invention are as follows. It is characterized by being able to create a fused function and form it into the shape desired by the user.
Further, in the present embodiment, description will be made based on the first convex body 8, but it is natural that the second convex body 9 is formed on the mounting convex body 25.

  Next, a tenth embodiment will be described with reference to FIG.

FIG. 10A is a cross-sectional view illustrating an example of a multilayered shoe sole structure 26 in which the shoe sole structure 1 of the shoe 2 is formed in two layers.
FIG. 10B is a cross-sectional view illustrating an example of a multilayered shoe sole structure 26 in which the shoe sole structure 1 of the shoe 2 is formed in two layers.

First, a multilayer footwear sole structure 26 shown in FIG. 10A is a footwear that is a first convex portion 8 and a second layer portion 26b formed on a front portion 3a of the footwear 2 that is a first layer portion 26a. 2 shows an example in which a multilayer footwear sole structure 26 composed of a first convex portion 8 formed on a back portion 3b of the second shoe and having two layers is formed.
In the multilayered shoe sole structure 26 shown in FIG. 5A, the first convex portions 8 formed on the front portion 3a and the first convex portions 8 formed on the back portion 3b are opposed to each other. It is a specification form on a substantially hemisphere in contact, and the front part 3a and the back part 3b are turned with the first convex body part 8 abutting on the foot part 4 as a fulcrum, and the foot part 2 is turned, and the footwear 2 comes in contact with The footwear 2 is configured to perform turning, which is weight shift, with the one convex body portion 8 as a fulcrum, and performs a turning operation, which is weight shift, with a fulcrum centered on a contact portion that abuts.

In addition, the multilayer footwear sole structure 26 shown in FIG. 5 (a) performs turning for weight shift with respect to the ground with the first convex body portion 8 of the second layer portion 26b serving as a fulcrum, and the first layer portion 26a of the first layer portion 26a. The turning of the weight, which is the weight shift, is performed on the first convex portion 8 formed on the front portion 3a and on the back portion 3b. The first convex body portion 8 causes a time difference of turning, which is a weight shift, to realize turning, which is a soft weight shift.
In the present embodiment, the first convex portions 8 have the same shape but are not specified.
Further, the first convex portion 8 does not specify the hardness or the height, but is formed by suitably selecting the function desired by the user.
Although the first convex body portion 8 is made of a material different from that of the footwear 2, it may be formed of the same material and is not specified.

Next, the multilayer footwear sole structure 26 shown in FIG. 5B includes a first convex body portion 8 and a second layer formed on the back portion 3b of the footwear 2 from the foot portion 4 to the first layer portion 26a. An example of the multilayer footwear sole structure 26 in which the first protrusions 8 formed on the front portion 3a of the footwear 2 as the portion 26b are stacked in two layers is shown.
The multilayer footwear sole structure 26 shown in FIG. 5B is a specification form in which the first convex portion 8 formed on the front portion 3a and the first convex portion 8 formed on the back portion 3b abut, The turning operation of weight shift is performed with a large contact portion, which integrates the first convex portion 8 of the front portion 3a and the first convex portion 8 of the back portion 3b as a fulcrum.
In the turning operation as the weight shift, the turning as the weight shift of the footwear 2 is performed at the same time as the turning as the weight shift of the footwear 2, so that the turning effect as the weight shift is strengthened. .

In the present embodiment, the first convex portions 8 formed on the front portion 3a and the first convex portions 8 formed on the back portion 3b have the same shape, but have different shapes of the first convex portions. The shape that matches the function that is often required even when the body part 8 is formed is suitably combined, and is not specified.
Further, the first convex portion 8 of the front portion 3a and the first convex portion 8 of the back portion 3b are not specified for hardness, height, etc., but are formed by suitably selecting a function desired by the user. It is.
In addition, the multilayer footwear sole structure 26 of the present invention forms the first convex body part 8 with the first convex part 8 corresponding to the material between the materials of the multilayer footwear bottom part 3 such as sandals, or the material itself. The formation of the first convex portion 8 of the present invention is characterized in that the material is not specified.
Also, the multilayer footwear sole structure 26 of the present invention is shown as having a two-layer structure, but is not limited thereto, and may be formed by selecting a suitable layer, such as three or four layers.
Further, the combination is not limited to the combination of the front portion 3a or the back portion 3b of the present embodiment, but a combination matching the shape and function of the footwear 2 is naturally preferably selected.
In addition, although a gap is formed between the first layer portion 26a and the two layers 11b, it is not specified, but a close contact configuration is suitably selected and formed.

In the present invention, the specifications in combination with the overlapping convex portion 22, the void convex portion 23, the divided convex portion 24, and the like are natural, and the features of the first convex portion 8 and the second convex portion 9 of the present invention are as follows. It is characterized by being able to create a fused function and form it into the shape desired by the user.
Further, in the present embodiment, description will be made based on the first convex body 8, but it is natural that the second convex body 9 is formed on the mounting convex body 25.

1 Footwear bottom structure 2 Footwear 2a Footwear inner bottom 2b Footwear outer bottom 3a Front part 3b Back part 4 Foot 4a Thumb side 4b -Toe side 4c-Heel side 4d-Forefoot side 5 ... Sole 5a-Thumb 5b-Toe 5c-Heel 6 ... Four metatarsal part 7 ... Fifth metatarsal part 8 ... First convex body 8a / First convex body peripheral part
8b / cut 9 / second convex body 9a / periphery of second convex body
9b, cut part 9c, forefoot part side part 9d, heel part side part 9e, thumb part side part 9f, little toe part side part 10, inner vertical arch part 11, outside Vertical arch part 12, horizontal arch part 13, MP line 14, first metatarsal part 15, second metatarsal part 16, third metatarsal part 17, calcaneal part 18. Talar part 19, fibula part 20, tibia part 21, cubic part 22, overlapping convex part
22a, bag body 22b, outer cover 23, divided convex part 23a, cubic part 24, void convex part 24a, void part 25, mounting convex part 25a, mounting part 25b, peeling part 26. Multi-layer footwear sole structure 26a, first layer 26b, second layer

Claims (1)

A footwear sole structure (1) that forms a first convex body (8) on a footwear inner bottom part (2a) or a footwear outer bottom part (2b) of the footwear (2),
The first convex part (8) is a fourth metatarsal part (6) and a fifth metatarsal part (7) of a foot part (4) on a footwear inner bottom part (2a) of the footwear (2). (3a), which is a portion that is abutting and positioned, or a back portion (3b) that is a portion located on the outer bottom portion (2b) of the footwear (2) facing the front portion (3a). Formed in
The first convex body portion (8) is configured such that the height of the toe portion side portion (4a) is lower than the height of the toe portion side portion (4b) in the shape of the forefoot portion side surface portion (9c). Formed in
The shape of the heel side surface (9d) is formed such that the height of the toe side (4a) is lower than the height of the small toe side (4d),
In the shape of the side surface part (9e) of the toe part, the height of the toe part side (4a) is formed to be higher than the height of the heel part side (4c),
In the shape of the toe part side surface part (9f), the height of the toe part side part (4b) is formed to be higher than the height of the heel part side part (4c),
The area of the forefoot side surface (9c) is formed to be larger than the area of the heel side surface (9d),
Forming a second convex portion (9) formed so that the area of the side surface portion (9e) of the toe portion is smaller than the area of the side surface portion (9f) of the toe portion;
The second convex portion (9) includes a second convex portion peripheral portion (9a) engaged with the second convex portion (9),
The second convex body portion (9) and the second convex body peripheral portion (9a) have at least two projections from the small toe side surface (9f) toward the thumb toe side surface (9e). cut portions of the locations to (9b) is formed,
The footwear sole structure (1), wherein the second convex portion (9) is configured to be formed on the front portion (3a) or the back portion (3b).

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