CN110840012B

CN110840012B - Stretching type elastic buffering sole and shoe with same

Info

Publication number: CN110840012B
Application number: CN201911132697.7A
Authority: CN
Inventors: 许景贤
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-07
Filing date: 2019-11-07
Publication date: 2023-04-07
Anticipated expiration: 2039-11-07
Also published as: CN110840012A

Abstract

The invention discloses a stretching type elastic buffering sole which comprises a midsole and an outsole, wherein the midsole is arranged above the upper bottom surface of the outsole, the edge of the midsole is fixedly connected with the outsole, an elastic groove is formed in the rear edge part of the midsole, the elastic groove can be stretched by external force or reset by the elasticity of the elastic groove, the sole effectively reduces the impact force of the ground to the foot, and the foot can feel comfortable when walking. The invention also discloses a shoe, which comprises the sole and is beneficial to reducing the impact force of the ground to the foot when a person walks.

Description

Stretching type elastic buffering sole and shoe with same

Technical Field

The invention relates to the technical field of soles and shoes, in particular to a stretching elastic buffer sole and a shoe with the same.

Background

At present, people need to walk in daily life many times, and when people walk for a long distance, people feel tired and uncomfortable feet because the ground continuously impacts the feet; fig. 14 and 15 show a sole structure generally used in the prior art, in which an outsole is formed with latticed raised walls, and a midsole of the sole covers the latticed raised walls, and the latticed raised walls mainly serve to reduce material and weight, so that the prior art sole structure fails to provide effective cushioning to the foot.

Disclosure of Invention

The present invention is directed to overcoming the disadvantages of the prior art and, first, to provide a stretchable elastic cushioning sole which effectively reduces the impact force of the ground on the foot.

The purpose of the invention is realized by the following technical scheme.

The stretching elastic buffer sole comprises a middle sole and an upper sole, wherein the middle sole is arranged above the upper bottom surface of the upper sole, the edge of the middle sole is fixedly connected with the upper sole, an elastic groove is formed in the rear edge part of the middle sole, the elastic groove is arranged outside the part, in contact with the heel, of the middle sole, and the elastic groove can be stretched by external force to be opened so that the part, in contact with the heel, of the middle sole collapses towards the direction of the upper sole or is reset by the elasticity of the elastic groove.

Preferably, the elastic groove comprises a first groove wall and a second groove wall, and an included angle smaller than 90 degrees is formed between the first groove wall and the second groove wall.

Preferably, the number of the elastic grooves is two, and the two elastic grooves are arranged side by side.

Preferably, the elastic groove comprises a first straight groove wall and a second straight groove wall, the first straight groove wall and the second straight groove wall are arranged in parallel, and the lower end of the first straight groove wall is connected with the lower end of the second straight groove wall to form an arc wall portion.

Preferably, the sectional shape of the elastic groove is provided in a semicircular shape.

Preferably, the front portion of the insole is formed with at least three upward convex elastic retaining walls corresponding to the position of the forefoot, the elastic retaining walls include a first wall and a second wall, the first wall and the second wall form an included angle of 45 degrees to 90 degrees, and each elastic retaining wall is arranged along the inner and outer directions.

Preferably, at least three upward-protruding elastic arch support walls are formed in the middle of the inner side of the midsole corresponding to the arch positions, each elastic arch support wall comprises a third wall and a fourth wall, an included angle of 45 degrees to 90 degrees is formed between the third wall and the fourth wall, the elastic arch support walls are arranged along the inner direction and the outer direction, and the elastic arch support walls are gradually reduced from inside to outside.

Preferably, the front edge portion of the midsole is provided with the elastic groove.

Preferably, the elastic grooves are connected end to form a ring shape.

The invention also provides a shoe, which comprises the stretching elastic buffer sole in any technical scheme, wherein the shoe outsole or the shoe midsole is connected with an upper, and the upper and the shoe midsole enclose a wearing cavity of the shoe.

Compared with the prior art, the invention has the beneficial effects that: the insole is arranged above the upper bottom surface of the outsole, the edge of the insole is fixedly connected with the outsole, the elastic groove is formed in the rear edge portion of the insole, the elastic groove is arranged outside the portion, in contact with the heel, of the insole, and can be stretched by external force to enable the portion, in contact with the heel, of the insole to collapse towards the outsole or reset by the elasticity of the elastic groove. And (II) the shoes are provided with the soles, so that the shoes are beneficial to reducing the impact force of the ground to the feet when a person walks.

Drawings

Fig. 1 is a front view of the sole of the present invention.

Fig. 2 isbase:Sub>A schematic sectional view taken along linebase:Sub>A-base:Sub>A of fig. 1.

Fig. 3 is a schematic structural diagram of the second embodiment according to fig. 2.

Fig. 4 is a schematic structural diagram of the third embodiment according to fig. 2.

Fig. 5 is a schematic structural diagram of a fourth embodiment according to fig. 2.

Fig. 6 is a schematic structural diagram of the fifth embodiment shown in fig. 1.

Fig. 7 is a schematic structural diagram of the sixth embodiment shown in fig. 1.

Fig. 8 is a schematic view showing the elastic deformation of the present invention when it is pressed by the heel.

Fig. 9 is a schematic structural diagram of the seventh and eighth embodiments shown in fig. 1.

Fig. 10 is a schematic view of the structure of fig. 9 taken along the direction B-B.

Fig. 11 is a diagram illustrating a seventh embodiment of the present invention when a person walks.

Fig. 12 is an enlarged view of fig. 11 at D.

Fig. 13 is a schematic view of the structure of fig. 9 in a cross section taken along the direction C-C.

FIG. 14 is a front view of a prior art sole.

Figure 15 is a cross-sectional view of a prior art sole.

Description of the reference symbols: 1-a midsole; 2-shoe outsole; 101-an elastic groove; 1011-first tank wall; 1012-second slot wall; 1013-a first straight slot wall; 1014-a second straight slot wall; 1015-arc wall portion; 102-a flexible retaining wall; 1021-a first wall; 1022-a second wall; 103-elastic arch support wall; 1031-third wall; 1032-a fourth wall; 201-upper bottom surface; 3-shoe upper; 97-forefoot, 98-arch; 99-heel.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

The sole of this embodiment, as shown in fig. 1 and 2, includes insole 1 and outsole 2, and insole 1 sets up in the upper bottom surface 201 top of outsole 2, and the edge of insole 1 and outsole 2 fixed connection, as shown in fig. 2, the edge of insole 1 can set up to be connected with outsole 2 lock and then the bonding, and such a connected mode is firm. As shown in fig. 1, the rear edge portion of the midsole 1 is formed with an elastic groove 101, and the elastic groove 101 can be stretched by an external force or restored by its own elasticity.

The operation principle of the present embodiment is briefly described below: under the normal state, when the person walks, the heel 99 lands first, as shown in fig. 8, when the rear part of the insole 1 is pressed by the heel 99, the elastic groove 101 is elastically stretched due to the gravity of the human body, as shown in fig. 8, the elastic groove 101 is opened, and at the same time, the part of the insole 1 contacting with the heel 99 collapses to a certain extent, and for the function of the elastic groove 101, the figure is like a horizontally placed extension spring is provided. The contact process of the heel 99 and the ground can be understood as the collision process of two objects, according to the momentum theorem, when the momentum change of the heel 99 is a certain value, the impact force of the heel 99 on the ground is in inverse proportion to the action time of the impact force, and the elastic groove 101 increases the collision time of the heel 99 and the ground, so the impact force is reduced; however, as understood from the energy conservation perspective, the kinetic energy of the heel 99 is partially converted into the elastic potential energy of the elastic groove 101, so that the impact force of the ground on the foot can be effectively reduced in the present embodiment. On the other hand, such an arrangement is also beneficial to setting the rigidity of the partial area of the midsole 1 surrounded by the elastic grooves 101 to be higher, so as to be beneficial to concentrating the elastic deformation on the elastic grooves 101, and the partial area of the midsole 1 surrounded by the elastic grooves 101 with higher rigidity is beneficial to the supporting stability of the sole to the heel 99. When the heel 99 is lifted, the elastic groove 101 is restored by its own elasticity.

Further, as shown in fig. 2, the elastic groove 101 includes a first groove wall 1011 and a second groove wall 1012, the first groove wall 1011 and the second groove wall 1012 form an included angle smaller than 90 °, and as seen in fig. 2, the elastic groove 101 is shaped like a letter "V", the included angle between the first groove wall 1011 and the second groove wall 1012 is not preferably larger than or equal to 90 °, and is preferably set within 60 °.

In some embodiments, as shown in fig. 3, the number of elastic grooves 101 is two, and the two elastic grooves 101 are arranged side by side, which is favorable for further increasing the total elastic stretching amplitude.

In some embodiments, as shown in fig. 4, the resilient channel 101 comprises a first straight channel wall 1013 and a second straight channel wall 1014, the first straight channel wall 1013 and the second straight channel wall 1014 being arranged in parallel, and a lower end portion of the first straight channel wall 1013 and a lower end portion of the second straight channel wall 1014 being connected to form an arc wall portion 1015, when the resilient channel 101 is shaped like a capital letter "U" as viewed in fig. 4; since the first straight groove wall 1013 is disposed in parallel with the second straight groove wall 1014, it is advantageous to facilitate the injection molding process of the midsole 1 having the elastic groove 101 of this shape.

In some embodiments, as shown in fig. 5, the cross-sectional shape of the elastic groove 101 is a semi-circle, and since the bending angle of the elastic groove 101 is relatively gentle, when the elastic groove 101 is elastically stretched, the stress of the elastic groove 101 is relatively dispersed, which is beneficial to avoid the occurrence of fatigue tearing of the material of the elastic groove 101 due to stress concentration.

Several shapes of the cross section of the elastic groove 101 may be arranged in two side-by-side rows like fig. 3.

In some embodiments, as shown in fig. 9 to 10, at least three upwardly protruding elastic retaining walls 102 are formed at the front portion of the midsole 1 corresponding to the forefoot 97, the elastic retaining walls 102 include a first wall 1021 and a second wall 1022, the first wall 1021 and the second wall 1022 form an included angle of 45 ° to 90 °, the included angle between the first wall 1021 and the second wall 1022 is not too small, preferably 80 ° to 90 °, so as to avoid discomfort to the forefoot 97 in the non-walking state, and when viewed from fig. 10, the elastic retaining walls 102 are shaped like inverted letters "V", and each retaining wall 102 is disposed along the inside and outside directions; as shown in fig. 11 and 12, when the forefoot 97 touches the ground during walking, the forefoot 97 will crush the elastic retaining wall 102 to some extent or push it to roll, so that the elastic retaining wall 102 can play a role of buffering, and on the other hand, it is also beneficial to prevent the forefoot 97 from slipping in the shoe.

In some embodiments, as shown in fig. 9 and 13, at least three upward convex elastic arch support walls 103 are formed in the middle of the inner side of the midsole 1 corresponding to the arch 98, the elastic arch support walls 103 include a third wall 1031 and a fourth wall 1032, the third wall 1031 forms an included angle of 45 ° to 90 ° with the fourth wall 1032, the included angle is also taken into consideration of the tactile sensation of the muscles in the arch 98, the elastic arch support walls 103 are arranged in the inward and outward directions, the elastic arch support walls 103 gradually decrease from inside to outside, that is, their lengths, widths and heights gradually decrease, and the elastic arch support walls 103 are preferably arc-shaped, the concave side of the arc is inward, so as to make each elastic arch support wall 103 approach to the concave shape of the arch 98.

In some embodiments, as shown in fig. 6, a resilient groove 101 is also provided at the front edge of the midsole 1, and similarly, the resilient groove 101 can provide cushioning when the ball 97 lands during walking.

In some embodiments, as shown in fig. 7, the elastic grooves 101 are connected end to form a ring, which may be a circular ring or a square ring with round corners, so that when the heel 99 lands on the ground during walking, the area surrounded by the elastic grooves 101 having a ring shape is more likely to sag for buffering the elastic deformation, but has some abrupt feeling for the entire sole.

The soles in the figures correspond to the left foot, and for the right foot sole, the left and right symmetrical relationship is adopted, so that the description is omitted.

The invention also provides a shoe adopting the embodiment, which comprises the sole, wherein the shoe outsole 2 or the shoe insole 1 is connected with the shoe upper 3, the shoe upper 3 and the shoe insole 1 enclose a wearing cavity of the shoe, and the shoe is provided with the sole, so that the shoe has the beneficial effect of the sole.

Claims

1. The utility model provides a tensile formula elastic buffering sole, includes insole (1) and outsole (2), its characterized in that: insole (1) sets up last bottom surface (201) top of big end of shoes (2), the edge of insole (1) with big end of shoes (2) fixed connection, the back edge portion of insole (1) is formed with elasticity groove (101), elasticity groove (101) exist in the outside at the position of insole (1) and heel (99) contact, elasticity groove (101) can be stretched and open by external force and make the position of insole (1) and heel (99) contact collapse towards big end of shoes (2) direction or reset by its self elasticity.

2. The tension-type elastic cushioning sole of claim 1, wherein: the elastic groove (101) comprises a first groove wall (1011) and a second groove wall (1012), and an included angle smaller than 90 degrees is formed between the first groove wall (1011) and the second groove wall (1012).

3. The stretch-type resilient cushioning sole of claim 1, wherein: the number of the elastic grooves (101) is two, and the two elastic grooves (101) are arranged side by side.

4. The tension-type elastic cushioning sole of claim 1, wherein: the elastic groove (101) comprises a first straight groove wall (1013) and a second straight groove wall (1014), the first straight groove wall (1013) and the second straight groove wall (1014) are arranged in parallel, and the lower end part of the first straight groove wall (1013) and the lower end part of the second straight groove wall (1014) are connected to form an arc wall part (1015).

5. The tension-type elastic cushioning sole of claim 1, wherein: the cross-sectional shape of the elastic groove (101) is semicircular.

6. The stretch-type resilient cushioning sole of claim 1, wherein: the front part of the insole (1) corresponds to the forefoot (97) position and is formed with at least three upward convex elastic retaining walls (102), the elastic retaining wall (102) comprises a first wall (1021) and a second wall (1022), the first wall (1021) and the second wall (1022) form an included angle of 45 degrees to 90 degrees, and each elastic retaining wall (102) is arranged along the inner and outer directions.

7. The stretch-type resilient cushioning sole of claim 1, wherein: at least three upward-protruding elastic arch support walls (103) are formed in the middle of the inner side of the midsole (1) corresponding to the arch (98), each elastic arch support wall (103) comprises a third wall (1031) and a fourth wall (1032), an included angle of 45 degrees to 90 degrees is formed between the third wall (1031) and the fourth wall (1032), the elastic arch support walls (103) are arranged along the inner and outer directions, and the elastic arch support walls (103) are gradually reduced from inside to outside.

8. The stretch-type resilient cushioning sole of claim 1, wherein: the front edge part of the middle sole (1) is provided with the elastic groove (101).

9. The stretch-type resilient cushioning sole of claim 1, wherein: the elastic grooves (101) are connected end to form a ring.

10. A shoe, characterized in that: comprising a stretchable elastic buffer sole according to any one of claims 1 to 9, wherein an upper (3) is attached to the outsole (2) or the midsole (1), and the upper (3) and the midsole (1) enclose a wearing cavity of the shoe.