Perforated sole

Abstract

The utility model relates to shoe accessories, in particular to a perforated sole which comprises a midsole, a partition groove is formed in the lower side face of the midsole, a plurality of through holes which are arranged in a one-to-one correspondence mode are formed in the two side walls of the partition groove respectively, a first opening part is formed in the end, facing the partition groove, of each through hole, and a long flat opening part is formed in the other end of each through hole. The first opening part is a round opening part, an oval opening part, a kidney-shaped opening part or an egg-shaped opening part, the length direction of the long and flat opening part is gradually inclined upwards from back to front, and the diameter of the inner contour of the first opening part is smaller than that of the inner contour of the long and flat opening part. The shoe sole can still provide certain supporting force when the through holes deform due to stress, the through holes are not prone to being completely flattened, the relatively stable damping performance can be provided, the damping balance sense and the force conduction smoothness are relatively good, meanwhile, due to the existence of the separation grooves, force on the left side and the right side of the shoe sole is not prone to being transmitted mutually, and the service life of the shoe sole is prolonged. And the damping balance feeling can be improved.

Description

Technical Field

[0001] The utility model relates to shoe accessories, in particular to a perforated sole. Background Art

[0002] Weight and shock absorption performance are two important indicators of the sole of sports shoes, which directly affect wearing comfort and sports performance. Directly opening holes in the sole to form a perforated sole is a relatively common means to reduce the weight of the sole and improve shock absorption performance at present. The Chinese invention patent with the authorization announcement number of CN109008056B is a gradient shock-absorbing sole designed by the applicant in the early stage. A plurality of hollow holes are arranged along the width direction of the sole body on the sole body, and the plurality of hollow holes are arranged side by side along the length direction of the sole body; each of the hollow holes is a tapered hole that narrows from both ends to the middle. Although the hollow holes provided on this sole can achieve the effects of weight reduction and shock absorption, however, during use, during the compression of the hollow holes, its shock absorption performance will change greatly, the balance feeling is relatively poor, and the smoothness of force conduction is also relatively poor.

[0003] In view of this, the applicant has conducted in-depth research on the structure of the perforated sole, and thus this case is produced. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a perforated sole with relatively good shock absorption balance and smooth force conduction.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A perforated sole includes a midsole. A partition groove is formed on the lower side of the midsole. One end of the partition groove faces the toe direction, and the other end faces the heel direction. A plurality of through holes arranged in one-to-one correspondence are respectively formed on both side walls of the partition groove. One end of each through hole facing the partition groove forms a first opening, and the other end forms an oblong opening. The first opening is a circular opening, an oval opening, a kidney-shaped opening or an egg-shaped opening. The length direction of the oblong opening is arranged to gradually incline upward from back to front, and the inner contour diameter of the first opening is smaller than the inner contour diameter of the oblong opening.

[0007] As an improvement of the utility model, the inclination angle of the length direction of the oblong opening relative to the horizontal plane is 30°-60°.

[0008] As an improvement of the utility model, the oblong opening includes a main opening area and a secondary opening area located above the side of the main opening area. The upper side wall of the main opening area has a gentle wall section with an inclination angle relative to the horizontal plane less than 10°.

[0009] As an improvement of the present utility model, in the same through hole, the first opening is located at a position corresponding to the main opening area.

[0010] As an improvement of the present utility model, on the same side of the partition groove, each of the through holes is divided into a front hole group and a rear hole group at the middle waist position of the midsole. Each of the through holes in the front hole group is arranged in a curved line convex towards the ground in sequence, and each of the through holes in the rear hole group is arranged in a straight line gradually inclined downward from back to front in sequence.

[0011] As an improvement of the present utility model, protrusions are respectively arranged at positions between adjacent two of the through holes in the partition groove.

[0012] As an improvement of the present utility model, a outsole is compounded on the lower surface of the midsole. A hollow area is formed on the outsole at a position corresponding to the partition groove, and anti-slip patterns are respectively arranged on both sides of the hollow area of the outsole.

[0013] Adopting the above scheme, the present utility model has the following beneficial effects:

[0014] 1. By setting the opening of the through hole on the shoe side as an oblong opening, and the length direction of the oblong opening is gradually inclined upward from back to front, certain supporting force can still be provided when the through hole is deformed by force, the through hole is not easily completely flattened, relatively stable shock absorption performance can be provided, the shock absorption balance and the smoothness of force transmission are relatively good. At the same time, due to the existence of the partition groove, the forces on the left and right sides of the sole are not easily transmitted to each other, which also helps to improve the shock absorption balance.

[0015] 2. Through different arrangement modes of the front hole group and the rear hole group, while achieving the effect of rebound and shock absorption, good support for the foot can be formed, and certain assistance can also be formed for the foot.

[0016] 3. By arranging protrusions in the partition groove, it helps to improve the stability of the sole and avoid ankle sprains. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural view of the perforated sole of the present utility model;

[0018] Figure 2 is a schematic structural view of another perspective of the perforated sole of the present utility model.

[0019] The labels in the figure correspond as follows:

[0020] 10 - midsole; 11 - partition groove;

[0021] 12 - through hole; 13 - convex rib;

[0022] 14 - protrusion; 15 - connecting strip

[0023] 20 - outsole; 21 - anti - slip pattern

[0024] 31 - main mouth area; 32 - secondary mouth area

[0025] 33 - gentle section Specific embodiments

[0026] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0027] As Figure 1 - Figure 2 shown, this embodiment provides a perforated sole, including a midsole 10 and an outsole 20 compounded on the lower surface of the midsole 10. Among them, the midsole 10 is an ETPU midsole with good shock - absorption performance, so that the double shock - absorption of materials and structure can be used to improve the foot - feeling comfort during use. The outsole 20 is a rubber outsole with good wear - resistance performance, which helps to improve the service life of the sole.

[0028] For the convenience of description, in this embodiment, the side of the sole facing the toe of the shoe is defined as the front, the opposite side is the rear, the side where the two shoe bodies of the same pair of shoes face each other is the inner side of the shoe, and the opposite side is the outer side of the shoe.

[0029] A partition groove 11 is formed on the lower side of the midsole 10. One end of the partition groove 11 faces the toe direction, and the other end faces the heel direction, and neither the front nor the rear of the partition groove 11 penetrates through the midsole 10. In this way, the integrity of the midsole 10 can be maintained, and the force transmission on the left and right sides of the midsole can be blocked, providing better deformation ability and also helping to reduce the weight of the sole. An empty area is formed on the outsole 20 at the position corresponding to the partition groove 11 to avoid affecting the performance of the midsole 10. At the same time, anti - slip patterns 21 are respectively arranged on both sides of the empty area of the outsole 20.

[0030] On both side walls of the separation groove 11, a plurality of through holes 12 arranged in one-to-one correspondence are respectively formed. The through holes 12 located on the same side of the separation groove 11 are divided into a front hole group and a rear hole group at the midriff position of the midsole 10. The number of through holes in each hole group can be determined according to actual needs, but there is at least one. In this embodiment, there are more than four through holes in each hole group. Among them, the front hole group is located at the forefoot position of the shoe sole, and the through holes 12 in the front hole group are arranged in sequence as an arc line convex towards the ground, that is, the through holes 12 in the front hole group are arranged in an arc line, and this arc line is convex downward and the arc opening is upward; this can form a better linkage effect, ensure the shock absorption performance and provide better support for the forefoot at the same time. The rear hole group is located at the rear part position of the shoe sole, and the through holes 12 in the rear hole group are arranged in sequence as a straight line that is gradually inclined downward from back to front, that is, the through holes 12 in the rear hole group are arranged in a straight line, and this straight line is gradually inclined downward from back to front, so that a forward elastic force can be provided during running, which helps to improve the movement efficiency. In addition, a convex rib 13 is provided between the front hole group and the rear hole group on the same side to enhance the stability of the midriff position of the shoe sole. It should be noted that for the shape requirement of the shoe sole, decorative blind holes with the same or similar shape as the mouth part of the through hole can also be formed on the inner side or the outer side of the midsole 10.

[0031] At one end of each through hole 12 facing the separation groove 11, a first mouth part is formed, and at the other end, a long and flat mouth part is formed. Among them, the first mouth part is a circular mouth part, an oval mouth part, a kidney-shaped mouth part or an egg-shaped mouth part, and the long and flat mouth part is in a flat and irregular shape, and its length direction is gradually inclined upward from back to front. In this way, when the midsole 10 is compressed by force, the long and flat mouth part is not easily flattened directly, and can provide better resilience and stable support force. Preferably, the inclination angle of the length direction of the long and flat mouth part relative to the horizontal plane is 30°-60°.

[0032] In the same through hole 12, the inner contour diameter of the first mouth part is smaller than the inner contour diameter of the long and flat mouth part, and the inner wall of the through hole 12 has a smooth transition between the first mouth part and the long and flat mouth part, that is, the through hole 12 is a gradually changing perforation with a cross-section and an inner contour diameter that continuously change from one end to the other end. In this way, the deformation amount of the through hole 12 at the inner side or the outer side position of the shoe is larger, and the buffer shock absorption performance is good, while the deformation amount at the first mouth part position is smaller, and the buffer shock absorption performance gradually decreases, realizing the gradual buffer shock absorption from the two side edges to the middle of the midsole 10, and the shock absorption effect is better, which helps to avoid ankle sprains.

[0033] Preferably, in this embodiment, the long and flat mouth part includes a main mouth part area 31 and a secondary mouth part area 32 located above the side of the main mouth part area 31, and the overall shape is like a deck chair or a peanut shell. Among them, the upper side wall of the main mouth part area 31 has a gentle wall section 33 with an inclination angle relative to the horizontal plane less than 10°, and the length of the gentle section 33 is 2-10 mm. This helps to further improve the balance of shock absorption and the smoothness of force application, thereby improving the comfort of use. In addition, in the same through hole 12, the first mouth part is located at a position corresponding to the main mouth part area 31. In this way, the material thickness between the first mouth part and the upper surface of the midsole 10 is relatively large, which helps to further improve the stability of the shoe sole.

[0034] Preferably, protrusions 14 are respectively arranged at positions between adjacent two through holes 12 in the partition groove 11. This helps to improve the rigidity of the first mouth part and reduce its deformation ability. It should be noted that in this embodiment, the adjacent two through holes 12 refer to the adjacent two through holes 12 on the same side of the partition groove 11, and do not include the two corresponding through holes 12. In addition, a connecting strip 15 is arranged between adjacent two protrusions to further improve the supporting ability and avoid affecting the supporting performance of the middle part of the shoe sole due to the opening of the partition groove 11.

[0035] The above has made a detailed description of the present invention in conjunction with the accompanying drawings. However, the implementation manners of the present invention are not limited to the above implementation manners. Those skilled in the art can make various deformations to the present invention according to the prior art, and these all belong to the protection scope of the present invention.

Claims

1. A perforated sole, comprising a midsole, characterized in that: A partition groove is provided on the lower side of the midsole, one end of the partition groove faces the toe direction, and the other end faces the heel direction. A plurality of through holes arranged in one-to-one correspondence are respectively provided on the two side walls of the partition groove, and each of the through holes forms a first opening at one end facing the partition groove, and a long flat opening at the other end. The first opening is a circular opening, an elliptical opening, a waist-shaped opening or an egg-shaped opening, and the length direction of the long flat opening is gradually inclined upward from the back to the front, and the inner contour diameter of the first opening is smaller than the inner contour diameter of the long flat opening.

2. The perforated sole according to claim 1, characterized in that The inclination angle of the length direction of the long flat mouth relative to the horizontal plane is 30°-60°.

3. The perforated sole according to claim 1, characterized in that The long flat mouth portion includes a main mouth portion area and a secondary mouth portion area located above the main mouth portion area. The upper side wall of the main mouth portion area has a gentle wall section with an inclination angle of less than 10° relative to a horizontal plane.

4. The perforated sole according to claim 3, characterized in that In the same through hole, the first opening is located at a position corresponding to the main opening area.

5. The perforated sole according to claim 1, characterized in that The through holes located on the same side of the dividing groove are divided into a front hole group and a rear hole group at the midsole position, the through holes in the front hole group are arranged in an arc line convex to the ground, and the through holes in the rear hole group are arranged in a straight line gradually inclined downward from back to front.

6. The perforated sole according to claim 1, characterized in that Protrusions are respectively arranged in the separation groove at positions between two adjacent through holes.

7. The perforated sole according to any one of claims 1 to 6, characterized in that: The lower surface of the midsole is compounded with an outsole, a hollow area is formed on the outsole at a position corresponding to the dividing groove, and anti-slip patterns are respectively arranged on both sides of the hollow area of ​​the outsole.

Images