JP3126681U - Sole structure of footwear - Google Patents

Abstract

An object of the present invention is to provide an exercise effect by walking with a special form of walking with the toe portion raised, and to provide a soft exercise effect by forming a natural gradient change on the front and rear sides with reference to the metatarsal bone. It is possible to provide a sole structure for footwear capable of ensuring a sufficient wearing feeling and comfortable feeling.
A main sole 100 formed in a schematic shape along an outline of a sole, a front cushion sole 200 coupled to an entire front portion 120 of a metatarsal bone portion 110 of the main sole 100, and a main sole 100 A rear cushion sole 300 joined to the entire rear portion 130 of the metatarsal bone 110, and the front cushion sole 200 or the rear cushion sole 300 is compressed before or after the metatarsal bone 110 by the weight of the pedestrian, A sole structure for footwear is provided in which the gradient of the entire sole changes around the foot bone portion 110.
[Selection] Figure 1

Description

  The present invention relates to a sole structure of footwear.

  The footwear not only protects the foot during walking, but also serves to buffer the impact transmitted to the wearer during walking. In addition, footwear is formed by connecting a crust that covers a wearer's foot to a sole that forms a bottom layer. In this case, the sole is usually formed by covering an upper layer of a single sole with an insole, or by forming a midsole with an upper layer of an outsole and covering the upper layer with an insole. Is common.

  Generally, the sole in such footwear is formed such that the heel portion is slightly higher than the toe portion. At this time, the sole is formed of a uniform structure and material from the heel region to the toe region, and has a uniform cushion (elasticity).

  The footwear to which such a conventional sole structure is applied is not sufficient for obtaining a special exercise effect because it uses only muscles that are always used during wearing and walking.

  Therefore, recently, footwear designed so that the sole structure itself formed from a uniform material is designed so that the heel part is lower than the toe part has been proposed. The footwear having this structure maintains a state in which the toe side is always raised at the time of wearing and walking, and provides an exercise effect as if climbing a mountain even when walking on flat ground.

  However, such conventional footwear for exercise purpose emphasizes only the exercise effect. Therefore, an appropriate wearing feeling cannot be provided, causing inconvenience for the user. Also, in the design for shock absorption, only a simple cushion is provided, and the movement effect is rather canceled. Therefore, there is a problem that it is not appropriate in terms of harmony between the exercise effect and the feeling of wearing. Moreover, the form is too different from ordinary footwear, and there is a problem that it is inconvenient to wear normally.

  Therefore, the present invention has been made in view of the above problems, and the object of the present invention is to provide a movement effect by walking with a special form of walking while raising the toe part, and the metatarsal part. New and improved footwear that can provide a soft movement effect by forming a natural gradient change on the front and rear sides with reference to the base, and can ensure a sufficient wearing feeling and comfort It is in providing the sole structure.

  In order to solve the above-described problem, according to an aspect of the present invention, a main sole formed in a schematic shape along an outline of a sole and a front part of a metatarsal portion of the main sole are combined. A front cushion sole and a rear cushion sole joined to the entire rear part of the metatarsal part of the main sole, and the front cushion sole or the rear cushion sole is compressed before or after the metatarsal part by the weight of the pedestrian A sole structure for footwear is provided in which the gradient of the entire sole changes around the metatarsal bone.

  With this configuration, the main sole can form a gentle slope that gradually decreases from the front to the back by compressing the rear cushion sole with the metatarsal bone portion as a fulcrum when worn. Further, by compressing the front cushion sole, it is possible to form a gentle slope that gradually increases from the front to the rear. In addition, the front and rear cushion soles provide an appropriate cushion effect, that is, an impact absorbing effect when worn and walked.

  Further, the rear cushion sole may be coupled over the entire rear lower surface of the metatarsal portion of the main sole. With such a configuration, an appropriate inclination of the main sole can be formed when the rear cushion sole is compressed. In addition, it provides a moderate impact absorbing effect when worn and when walking.

  Further, the front cushion sole may be higher as it goes forward, and the rear cushion sole may be thicker as it goes rearward. With such a configuration, an appropriate inclination of the main sole can be formed when the rear cushion sole is compressed, and an appropriate inclination of the main sole can be formed when the front cushion sole is compressed. Moreover, the front of the front cushion sole becomes high, so that it is easy to move back and forth during walking, and smooth footing can be performed when touching the ground and when leaving the ground. .

  In addition, an incision hole may be formed in the heel portion of the main sole, and the portion of the rear cushion sole corresponding to the incision hole may protrude and directly contact the pedestrian's heel. With this configuration, the rear cushion sole can provide an appropriate cushion effect.

  Further, a sealed space is formed between the heel portion of the main sole and the portion of the rear cushion sole corresponding to the heel portion, and further includes a tube having one end located in the sealed space and the other end exposed to the outside. But you can. With this configuration, when the sealed space is compressed, an appropriate inclination of the main sole is formed, and the air in the sealed space is exhausted to the outside through the tube to circulate the air inside the footwear. it can.

  Moreover, a health material may be filled in a part of the sealed space. With such a configuration, components useful for the human body from the health material are added to the air discharged into the footwear, and actions such as deodorization and moisture absorption can be performed when the air is circulated.

  Further, the other end of the tube may be exposed to the outside at the arch portion of the toe.

  Further, the rear cushion sole may be coupled over the entire upper surface of the rear portion of the metatarsal portion of the main sole. With such a configuration, an appropriate inclination of the main sole can be formed when the rear cushion sole is compressed. In addition, it provides a moderate impact absorbing effect when worn and when walking.

  Further, the rear cushion sole may be formed of a material which is separated in the lateral direction and whose outer side is firmer than the inner side. With such a configuration, the pressure resistance outside the rear cushion sole can be increased.

  In addition, the main sole may be provided with an air tunnel that crosses the cushion sole in a lateral direction. With this configuration, air circulation between the air inside the footwear and the outside air can be performed.

  The air tunnel may include an air circulation groove that penetrates the upper surface of the main sole. With this configuration, air circulation between the air inside the footwear and the outside air can be performed.

  Moreover, the site | part provided with the air tunnel may be the arch site | part of a toe and the arch site | part of a sole.

  Moreover, you may further include the insole provided with the air circulation hole corresponding to the site | part in which an air circulation groove | channel is located.

  Further, the metatarsal portion of the main sole is provided with a number of recessed holes from the upper surface, and the number of recessed holes may be filled with a health material. With such a configuration, components useful for the human body from the health material are added to the soles of the wearer, and actions such as deodorization and moisture absorption inside the footwear can be performed.

  As described above, according to the present invention, while providing a motion effect by walking with a special form of walking with the toe part raised, a natural gradient change is formed on the front and rear sides with the metatarsal bone as a reference. Therefore, a soft exercise effect can be provided, and a sufficient wearing feeling and comfortable feeling can be ensured.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In addition, in this specification and drawing, about the component which has the substantially same function structure, duplication description is abbreviate | omitted by attaching | subjecting the same code | symbol.

  Hereinafter, a sole structure of footwear according to an embodiment of the present invention will be described in more detail with reference to the accompanying drawings.

FIG. 1 is an exploded perspective view showing a sole structure of footwear according to an embodiment of the present invention. FIG. 2 is a cross-sectional view showing an internal structure and an external structure along the line A-A ′ of the footwear having the sole structure according to the present embodiment of FIG. 1. FIG. 3 is a cross-sectional view showing a standing state after wearing the sole structure according to the present embodiment. FIG. 4 is a cross-sectional view showing a state of walking after wearing the sole structure according to the present embodiment. FIG. 5 is a sectional view taken along line B-B ′ of the footwear having the sole structure according to the present embodiment. FIG. 6 is an exploded perspective view showing a modification of the sole structure of the footwear according to the present embodiment. FIG. 7 is a cross-sectional view showing a footwear having a modification of the sole structure according to the embodiment of FIG. 8a and 8b are cross-sectional views showing various modifications of the sole structure of footwear according to the present embodiment. FIGS. 9a to 9c are cross-sectional views showing the inside and the outside of another footwear having a sole structure according to the present embodiment and various other modified examples of the sole structure of the footwear according to the present embodiment.

  The sole structure of the footwear according to the embodiment of the present invention includes a main sole 100, a front cushion sole 200, and a rear cushion sole 300, each of which has a different cushion material.

  As shown in FIG. 1 showing the embodiment, the main sole 100 serves as a main frame having a structure of the entire sole, and has an outline that matches the contour of the entire sole of the wearer. Further, the main sole 100 is formed of a rigid material having only enough elasticity to bend by walking and supports the entire load of the wearer.

  As shown in FIG. 2, the thickness of the main sole 100 is such that the metatarsal portion 110 located at the portion corresponding to the metatarsal bone of the sole is the thickest, and the front portion 120 and the rear portion 130 of the metatarsal portion 110 are relative to each other. It is thinly formed. Further, the bottom surface of the main sole 100 is formed such that the bottom surface of the metatarsal bone portion 110 is located at the lowest position and becomes higher from the metatarsal bone portion 110 in the front-rear direction. Therefore, the main sole 100 is formed so that the thickness gradually decreases as the bottom surface becomes higher from the metatarsal portion 110 in the front-rear direction. Further, the upper surface of the main sole 100 is formed such that the absolute height of both front and rear ends increases as it goes both front and rear.

  The front cushion sole 200 and the rear cushion sole 300 are arranged on the front portion 120 and the rear portion 130 which are thin portions of the metatarsal portion 110, respectively. Corresponding to the shape of the bottom surface of the main sole 100, the rear cushion sole 300 is formed to be thicker toward the rear, and the front cushion sole 200 is formed to be thicker toward the front, and the bottom and upper surfaces are higher toward the front. Is done. That is, the front cushion sole 200 is formed so as to warp as it goes forward. Therefore, the entire sole in which the front cushion sole 200 and the rear cushion sole 300 are coupled to the main sole 100 has a generally uniform thickness.

  Such front cushion sole 200 and rear cushion sole 300 are formed of a highly stretchable material. Therefore, when wearing and walking, the front cushion sole 200 and the rear cushion sole 300 act as cushions, and the main sole 100 acts like a seesaw with the metatarsal bone portion 110 as a reference (fulcrum).

  That is, as shown in FIG. 4, the load of the footwear wearer presses the solid main sole 100, and the main sole 100 is compressed while the rear cushion sole 300 absorbs the load and plays the role of a cushion, Tilt backwards. That is, the gradient of the upper surface of the main sole 100 with respect to the bottom surface of the entire sole (in this case, the bottom surfaces of the rear cushion sole 300 and the front cushion sole 200) is inclined rearward (rear is lower). At this time, the main sole 100 is inclined with the metatarsal bone portion 110 whose bottom surface is not supported by both the cushion soles 200 and 300 as a fulcrum. However, since the main sole 100 is formed of a solid material, the main sole 100 is inclined while forming an overall inclination. At this time, since the rear cushion sole 300 has a structure that becomes thicker toward the rear, a sufficient inclination can be ensured.

  Thus, if the main sole 100 tilts backward in the wearing state, the center of weight is biased backward. Therefore, since the wearer uses muscles of a specific part that is not usually used in order to maintain the center of the body, the wearer can obtain an exercise effect. At this time, it is obvious that the higher the degree of tilting backward, the higher the exercise effect.

  On the other hand, the center of weight (the center point on which the body weight is applied) in the left-right direction (inner-outer direction) of each person's foot is not the center of the normal foot but the outer portion.

  Therefore, when the wearer wears the footwear according to this embodiment, the rear cushion sole 300 is not compressed uniformly in the left-right direction, and the outer side is compressed more than the inner side. Therefore, the main sole 100 is further inclined outward, and the rear cushion sole 300 is compressed non-uniformly. Therefore, not only the damage of the footwear but also the problem that the leg of the wearer bends may occur.

  In order to prevent the rear cushion sole 300 from being compressed non-uniformly in this way, the rear cushion sole 300 includes an inner portion 320 and an outer portion 310 as shown in FIG. By separating the rear cushion sole 300 in the inner-outer direction (lateral direction) and configuring the outer portion 310 with a material that is more rigid than the inner portion 320, the inner portion 320 is relatively greatly compressed by the load. Therefore, the rear cushion sole 300 can be uniformly compressed in the lateral direction.

  On the other hand, as shown in FIG. 3, when the wearer walks and the center of weight (the center of gravity or the weight of the wearer moves) moves forward in such a wearing state, first, the center of weight is the rear cushion sole 300. To the metatarsal bone part 110, and the load is supported by the metatarsal bone part 110 of the main sole 100. Then, the load applied to the rear cushion sole 300 is slowly removed. Next, if the center of weight moves further forward, the center of weight moves to the front cushion sole 200 and a load is applied to the front cushion sole 200. At this time, the front cushion sole 200 is compressed and the main sole 100 is inclined with the metatarsal bone portion 110 as a fulcrum. That is, the gradient of the upper surface of the main sole 100 with respect to the bottom surface of the entire sole (in this case, the bottom surfaces of the rear cushion sole 300 and the front cushion sole 200) is inclined forward (the front is lowered). Therefore, as a whole, it is inclined forward from the normal footwear.

  As described above, when the main sole 100 is greatly tilted forward, the center of weight is biased forward, so that the wearer uses muscles of specific parts that are not usually used in order to maintain the center of the body. Therefore, the exercise effect can be obtained.

  On the other hand, the front cushion sole 200 and the rear cushion sole 300 have a structure that becomes higher (hot) as they go in the front-rear direction with respect to the metatarsal bone portion 110 that serves as a fulcrum, so that the footwear can be cushioned in overall walking Therefore, it is possible to prevent a phenomenon that the footwear cushion falls suddenly (a phenomenon in which the cushion of the footwear is suddenly compressed and falls due to the load applied to the heel). Therefore, it is obvious that a softer exercise effect (appropriate exercise effect) and a feeling of wearing can be provided.

  On the other hand, in the sole structure of the footwear according to the present embodiment, in order to further provide a better cushion feeling to the wearer, as shown in FIG. 1, the heel part of the main sole 100 (the part where the wearer's heel comes into contact) is The cushion sole 300 may be directly contacted.

  That is, the main sole 100 may have an incision hole 140 of a certain size at the heel portion, and the rear cushion sole 300 may have a protrusion 330 at a portion corresponding to the incision hole 140. By adding the protrusion 330 and causing the protrusion 330 to protrude through the incision hole 140, the wearer's heel can directly contact the stretchable rear cushion sole 300 that is not the rigid main sole 100.

  Therefore, apart from the fact that the overall gradient of the main sole 100 varies between the two cushion soles 200 and 300 during walking, the wearer's heel is better (more elastic) by the rear cushion sole 300 and has a cushioning effect (impact absorption). Effect). Therefore, the ankle and the joint are protected and the spinal cord is fixed to enable walking in a more correct posture.

  Moreover, as shown in FIGS. 6 and 7, as a modification of the sole structure of the footwear according to this embodiment, it is possible to have a pump structure for pumping air inside the footwear by walking to improve comfort. .

  As shown in FIG. 6, the heel portion of the main sole 100 is provided with a first pump forming recess 190 that is recessed upward, and the corresponding heel portion of the rear cushion sole 300 is recessed downward. A second pump forming recess 340 is provided. Therefore, when the rear cushion sole 300 is coupled to the main sole 100, a space (sealed space) is formed by the first pump forming recess 190 and the second pump forming recess 340, and this space is sealed.

  At this time, the tube 600 is attached so that one end is located inside the sealed space. Therefore, if a load due to walking is applied to the heel part, the sealed space is reduced and the air inside the space is discharged to the outside through the tube 600.

  In particular, since the tube 600 is fixed in the tube fixing groove 195 formed in the main sole 100, the feeling of wearing the footwear is not affected. At this time, the other end of the tube 600 is positioned in the air circulation groove 160 in the arch portion of the toe so that the pumped air is discharged into the space existing in the air tunnel 150 and the toe arch, thereby providing a comfortable feeling. You may make it raise further. Therefore, the other end of the tube 600 is exposed to the outside through the air circulation groove 160 at the position of the arch portion of the toe.

  The second pump forming recess 340 generates health beneficial ingredients such as a water vein neutralizer, natural jade, ocher, bioceramic, charcoal, and the like, and a health material 350 that helps remove moisture and malodor. By partially filling the air, it may be useful for health by affecting the air being pumped. Here, the water vein neutralizing agent is a substance that neutralizes a water vein phenomenon in which a human body is affected by water flowing underground.

  On the other hand, in order to prevent the drooping portion from dropping suddenly by such a pump structure, a supporting column (not shown) is formed at the center of the second pump forming recess 340, thereby supporting the load while supporting the load. Can be made to fall moderately.

  In the footwear sole structure according to this embodiment, the front cushion sole 200 and the rear cushion sole 300 can be separated and joined to the main sole 100 separately, but as shown in FIG. You may manufacture integrally by the connection part 250 which has the width | variety (thin thickness) of a direction. The connecting portion 250 is connected to the main sole 100 having a concave portion (not shown) that can accommodate the connecting portion 250 for the sake of manufacturing rigidity and for the reinforcement of the metatarsal bone cushion. Is desirable.

  In the present embodiment, the rear cushion sole 300 is coupled to the lower end of the main sole 100 after the metatarsal bone portion 110, but the present invention is not limited to this. For example, as various modified examples of the footwear having the sole structure according to the present embodiment, as shown in FIGS. 8a and 8b, the rear sole 300 is coupled to the main sole 100 in various ways (shape and coupling form). You can also As shown in FIG. 8 a, the rear cushion sole 300 can be disposed on the upper surface of the main sole 100. That is, as shown in FIG. 8a, the front cushion sole 200 and the rear cushion sole 300 may not be coupled. Further, the front cushion sole 200 may be disposed on the lower surface of the main sole 100, and the rear cushion sole 300 may be disposed on the upper surface of the main sole 100. Further, as shown in FIG. 8 b, the front cushion sole 200 and the rear cushion sole 300 may be combined and disposed on the upper surface of the main sole 100.

  Further, as shown in FIGS. 9A to 9C, various methods (shapes, combined forms) are possible even when the front cushion sole 200 and the rear cushion sole 300 are arranged on the lower surface of the main sole 100. As shown in FIGS. 9a to 9c, the rear cushion sole 300 does not include the protruding portion 330 of the sole structure according to the present embodiment shown in FIG. 1, so that the wearer's heel is in direct contact with the main sole 100. May be. 9a, the position of the air tunnel 150 included in the main sole 100 may be different from the position illustrated in FIG. Further, as shown in FIG. 9b, the main sole 100 may not include the air tunnel 150 included in the main sole 100 shown in FIGS. 2 and 9a. As shown in FIG. 9c, the front cushion sole 200 and the rear cushion are provided. The sole 300 may be configured without being coupled.

  On the other hand, the sole structure of the footwear according to the present embodiment may include the air tunnel 150 and the air circulation groove 160.

  In the air tunnel 150, the cushion soles 200 and 300 cover the concave grooves formed laterally (left and right) in the toe arch part and the sole arch part of the main sole 100 that are in contact with the cushion soles 200 and 300. Is formed. Such an air tunnel 150 is provided with a plurality of air circulation grooves 160 penetrating the upper surface of the main sole 100. That is, the space located in the upper part of the main sole 100 and the inside of the air tunnel 150 are coupled via the air circulation groove 160.

  The air tunnel 150 and the air circulation groove 160 are configured such that the main sole 100 bends and the air tunnel 150 expands and contracts every time when walking, thereby pumping air. Moisture and hot air locally concentrated on the site are circulated through the air circulation groove 160. Therefore, it is possible to maintain a comfortable footwear environment, prevent athlete's foot, and remove foot odor.

  The insole 500 applied to the sole structure of the footwear includes an air circulation hole 510 corresponding to a portion where the air circulation groove 160 is located. Therefore, the insole 500 does not interfere with the air circulation. The insole 500 may include an incision hole 540 at a position corresponding to the protruding portion 330 of the rear cushion sole 330. This incision hole 540 causes the protruding portion 330 to protrude in the same manner as the incision hole 140 of the main sole 100, and causes the wearer's heel to directly contact the rear cushion sole 300. Therefore, the wearer's heel receives a better (more elastic) cushion effect (impact absorbing effect) by the rear cushion sole 300.

  On the other hand, since the metatarsal portion 110 of the main sole 100 is formed of a solid material, it serves as a reference fulcrum for compressing the front and rear cushion soles 200 and 300 during walking. In the metatarsal bone part 110, a number of recessed holes 170 can be formed from the upper surface within a range that does not affect the function of the metatarsal bone part 110.

  Such recessed hole 170 can be maintained in a hollow state in order to save material or reduce weight. However, for example, water vein neutralizer, natural jade, ocher, bioceramic, charcoal, etc. The health material 180 may be filled to generate beneficial ingredients and help remove moisture and odors. By filling the health material 180, it is possible to have a more beneficial effect on the human body.

  In the sole structure according to the present embodiment as described above, the main sole 100 and the front and rear cushion soles 200 and 300 are integrally joined to form an integral sole, and the entire sole constitutes a single outsole, The footwear can be formed by connecting to the upper 400. Moreover, a midsole is comprised by the whole integral sole, it couple | bonds with a separate outsole, and it can also form footwear by connecting with the upper 400. FIG. In addition, any method that can be implemented by those skilled in the art can be used.

  While the footwear having the sole structure according to the present embodiment forms such a sole structure, it is apparent that the heel portion is slightly higher than the toe portion and the upper 400 is made like a normal footwear. Since they are formed by joining, a beautiful appearance can be provided.

  As described above, according to the sole structure of footwear according to the embodiment of the present invention, multiple soles of different materials are three-dimensionally joined to form the sole of the footwear. As a result, at the time of wearing footwear, it is possible to bring about an exercise effect such as going up an uphill road and an exercise effect like climbing a mountain. That is, according to the sole structure according to the present embodiment, it is possible to walk with a special form that walks with the toe portion raised, and the above-described exercise effect is achieved, and the natural foot-and-bone portion 110 is naturally back and forth with reference to the metatarsal bone 110. Since a gradient change can be formed, a soft exercise effect (moderate exercise effect) can be brought about. In addition, the sole structure according to the present embodiment is excellent in shock absorption, can protect the joints and ankles, and can provide an appropriate wearing feeling, comfortable feeling and comfort during wearing. . Furthermore, there is no difference from ordinary footwear in appearance, and there is an effect that there is no inconvenience for everyday wear.

  As mentioned above, although preferred embodiment of this invention was described referring an accompanying drawing, it cannot be overemphasized that this invention is not limited to this example. It is obvious for those skilled in the art that various changes or modifications can be conceived within the scope described in the claims for utility model registration, and these are naturally within the technical scope of the present invention. It is understood.

  The present invention is applicable to a sole structure of footwear.

It is a disassembled perspective view which shows the sole structure of the footwear concerning embodiment of this invention. It is sectional drawing which shows the internal and external structure along the A-A 'line | wire of the footwear with a sole structure concerning the same embodiment of FIG. It is sectional drawing which shows the state which stands after wearing of the sole structure concerning the embodiment. It is sectional drawing which shows the state which walks after wearing of the sole structure concerning the embodiment. It is sectional drawing along the B-B 'line | wire of the footwear with a sole structure concerning the embodiment. It is a disassembled perspective view which shows the modification of the sole structure of the footwear concerning the embodiment. It is sectional drawing which shows the footwear which has the modification of the sole structure concerning the embodiment of FIG. It is sectional drawing which shows the various modifications of the sole structure of the footwear concerning the embodiment. It is sectional drawing which shows the various modifications of the sole structure of the footwear concerning the embodiment. It is sectional drawing which shows the other various modification of the sole structure of the footwear concerning the embodiment. It is sectional drawing which shows the other various modification of the sole structure of the footwear concerning the embodiment. It is sectional drawing which shows the other various modification of the sole structure of the footwear concerning the embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Main sole 110 Metatarsal bone part 120 Front part 130 Rear part 140 Incision hole 150 Air tunnel 160 Air circulation groove 170 Depression hole 180 Health material 190 1st pump formation recessed part 195 Tube fixing groove 200 Front cushion sole 250 Connection part 300 Rear cushion sole 310 outer part 320 inner part 330 projecting part 340 second pump forming concave part 350 health material 400 upper skin 500 insole 510 air circulation hole 540 incision hole 600 tube

Claims (14)

A main sole formed in a schematic shape along the outline of the sole;
A front cushion sole coupled to the entire front portion of the metatarsal portion of the main sole;
A rear cushion sole coupled to the entire rear portion of the metatarsal portion of the main sole;
Including
The footwear is characterized in that the front cushion sole or the rear cushion sole is compressed before or after the metatarsal bone part depending on the weight of a pedestrian, and the gradient of the entire sole changes around the metatarsal bone part. The sole structure.   The sole structure of footwear according to claim 1, wherein the rear cushion sole is coupled over the entire rear lower surface of the metatarsal portion of the main sole. The front cushion sole becomes higher as it goes forward,
The footwear sole structure according to claim 2, wherein the rear cushion sole becomes thicker toward the rear. An incision hole is formed in the heel portion of the main sole,
The footwear sole structure according to claim 3, wherein a portion of the rear cushion sole corresponding to the incision hole protrudes and directly contacts a pedestrian's heel. A sealed space is formed between the heel portion of the main sole and the portion of the rear cushion sole corresponding to the heel portion,
The footwear sole structure according to claim 3, further comprising a tube having one end positioned in the sealed space and the other end exposed to the outside.   The footwear sole structure according to claim 5, wherein a part of the sealed space is filled with a health material.   The sole structure of footwear according to claim 6, wherein the other end of the tube is exposed to the outside at an arch portion of a toe.   The sole structure of footwear according to claim 1, wherein the rear cushion sole is coupled to the entire rear upper surface of the metatarsal portion of the main sole.   The sole structure of footwear according to any one of claims 1 to 8, wherein the rear cushion sole is formed of a material which is separated in a lateral direction and whose outer side is firmer than the inner side.   The sole structure for footwear according to any one of claims 1 to 9, wherein the main sole is provided with an air tunnel transversely crossing at a portion in contact with the cushion sole.   The footwear sole structure according to claim 10, wherein the air tunnel includes an air circulation groove penetrating the upper surface of the main sole.   The footwear sole structure according to claim 11, wherein the portion provided with the air tunnel is an arch portion of the toe and an arch portion of the sole.   The footwear sole structure according to claim 12, further comprising an insole provided with an air circulation hole corresponding to a portion where the air circulation groove is located. The metatarsal portion of the main sole is provided with a number of recessed holes from the upper surface of the main sole,
The footwear sole structure according to any one of claims 1 to 13, wherein the plurality of depressions are filled with a health material.

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