A sole structure that facilitates motion propulsion

Abstract

The application relates to a sole structure facilitating motion propulsion, which comprises a sole body, a propulsion block embedded in the sole body for assisting propulsion, the hardness of the propulsion block being greater than that of the sole body, the propulsion block comprising a first plate part arranged corresponding to the upper surface of the sole body, a second plate part arranged corresponding to the lower surface of the sole body, and a plurality of connecting plates arranged between the first plate part and the second plate part, a plurality of buffer holes being formed between adjacent connecting plates, the plurality of connecting plates being arranged along the front-rear direction of the sole body, the upper end of the connecting plate being connected with the first plate part, the lower end of the connecting plate being connected with the second plate part, and the upper end of the connecting plate being closer to the heel part of the sole body than the lower end. The application has the advantages of simple structure, buffering and propulsion.

Description

Technical Field

[0001] This invention relates to a sole structure that aids in propulsion during movement, belonging to the field of shoe soles. Background Technology

[0002] When running in shoes, the human body propels itself forward by pushing off. The soles of athletic shoes are often made of relatively soft materials such as foam (e.g., EVA or ETPU), which offer advantages like softness, comfort, and good cushioning. To improve the propulsion performance of shoes, some athletic shoes incorporate propulsion plates with superior hardness and elasticity, such as carbon fiber plates, into the sole. For example, Chinese utility model patent CN213487263U, entitled "An Athletic Shoe Containing a Racing Carbon Plate," discloses an athletic shoe containing a racing carbon plate. Its structure includes an upper and a sole. The upper is located at the top of the sole, and a racing carbon plate is embedded within the sole. The racing carbon plate has an arc-shaped elastic structure at its front, and adjustment devices for adjusting the curvature of the arc-shaped elastic structure are provided on both sides of the sole. For example, Chinese utility model patent CN213604780, entitled "An Ultralight High-Rebound Marathon Shoe Sole Structure", also discloses a sole with carbon fiber plates added to it. The carbon fiber plates can quickly return to their original shape after being deformed by force, which promotes the rebound of the sole and provides a certain propulsion force.

[0003] In the aforementioned patents, the soles using carbon fiber plates for propulsion have high rigidity and are mostly flat, making it difficult to control the stability of the soles. This requires a high level of control from the wearer, and the cushioning performance of these shoes is generally poor.

[0004] In view of this, the inventors of this case conducted in-depth research on the above-mentioned problems, which led to the creation of this case. Summary of the Invention

[0005] The purpose of this invention is to provide a shoe sole that can balance propulsion and cushioning performance with a simple structure.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A shoe sole structure that aids in propulsion includes a sole body with a propulsion block embedded within it. The propulsion block has a higher hardness than the sole body. The heel portion of the sole body is defined as the area corresponding to the heel, and the forefoot portion as the area corresponding to the front of the foot. An arch portion is formed between the heel and forefoot portions of the sole body. The side of the sole body corresponding to the inner side of the instep is defined as the medial side, and the side of the sole body corresponding to the outer side of the instep is defined as the lateral side. The propulsion block includes a first plate portion disposed on the upper surface of the sole body, a second plate portion disposed on the lower surface of the sole body, and multiple connecting plates disposed between the first and second plate portions. Buffer holes are formed between adjacent connecting plates. The multiple connecting plates are arranged along the front-rear direction of the sole body. The upper end of the connecting plate is connected to the first plate portion, and the lower end of the connecting plate is connected to the second plate portion. The upper end of the connecting plate is closer to the heel portion of the sole body than the lower end.

[0008] In a preferred embodiment of the present invention, the propulsion block is disposed at the heel and / or forefoot portion of the sole body.

[0009] As a preferred embodiment of the present invention, a buffer hole is formed between two adjacent connecting plates, and the buffer hole extends from the inside to the outside of the sole body.

[0010] In a preferred embodiment of the present invention, the connecting plates are arranged in parallel, and the connecting plates extend from the inside to the outside of the sole body.

[0011] In a preferred embodiment of the present invention, the propulsion block includes a first propulsion block, the sole body is provided with a first mounting hole, the first mounting hole extends from the inside to the outside of the sole body, the first propulsion block is disposed at the heel and extends toward the arch, the angle between the connecting plate in the first propulsion block and the horizontal plane is in the range of 60°-70°, and the distance between the lower ends of adjacent connecting plates is in the range of 16-21mm.

[0012] In a preferred embodiment of the present invention, the angle between the connecting plate in the first propulsion block and the horizontal plane is 65°.

[0013] In a preferred embodiment of the present invention, the propulsion block includes a second propulsion block, the sole body is provided with a second mounting hole, the second mounting hole extends from the inside to the outside of the sole body, the second propulsion block is disposed on the forefoot and extends towards the arch, the angle between the connecting plate in the second propulsion block and the horizontal plane is in the range of 38°-50°, and the distance between the lower ends of adjacent connecting plates is in the range of 16-21mm.

[0014] In a preferred embodiment of the present invention, the angle between the connecting plate in the second propulsion block and the horizontal plane is 42.5°.

[0015] In a preferred embodiment of the present invention, the thickness of the first plate portion, the second plate portion, and the connecting plate is all 0.8mm-1.8mm.

[0016] In a preferred embodiment of the present invention, the sole body includes a midsole, the midsole includes a first midsole and a second midsole composited on the first midsole, and the propulsion block is sandwiched between the first midsole and the second midsole.

[0017] As a preferred embodiment of the present invention, the Shore hardness C value of the midsole is 42-55, and the Shore hardness D value of the propulsion block is 55-85.

[0018] In a preferred embodiment of the present invention, the midsole is an EVA midsole, an ETPU midsole, or an ETPSIU midsole, and the propulsion block is a carbon fiber propulsion block, a nylon propulsion block, or a PEBAX propulsion block.

[0019] In a preferred embodiment of the present invention, the first plate extends along the direction of the upper surface of the sole body, and the second plate extends along the direction of the lower surface of the sole body.

[0020] In a preferred embodiment of the present invention, the first plate portion, the second plate portion, and the connecting plate are integrally formed, the rear end of the first plate portion is connected to the rear end of the second plate portion, and the front end of the first plate portion is connected to the front end of the second plate portion.

[0021] When the push block is subjected to a vertical force, the upper end of the connecting plate is closer to the heel of the sole body than the lower end. The upper end of the first plate and the connecting plate deforms backward to a certain position, and the distance between the first plate and the second plate decreases. The buffer hole serves as a buffer space for deformation, and the push block plays a role in shock absorption and buffering. When the vertical force decreases or disappears, the upper part of the connecting plate and the first plate rebound forward, and the push block plays a role in propulsion. The present invention has both buffering and propulsion functions and has the advantage of simple structure. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the first embodiment of the present invention.

[0023] Figure 2 This is a schematic diagram of the structure of the first propulsion block in the first embodiment of the present invention.

[0024] Figure 3 This is a schematic diagram of the first propulsion block from another angle in the first embodiment of the present invention.

[0025] Figure 4 This is a schematic diagram of the structure of the second embodiment of the present invention.

[0026] Figure 5This is a schematic diagram of the structure of the second propulsion block in the second embodiment of the present invention.

[0027] Figure 6 This is a schematic diagram of the second propulsion block from another angle in a second embodiment of the present invention.

[0028] Figure 7 This is a schematic diagram simulating the vertical force exerted by the ball on the propulsion block in this invention.

[0029] Figure 8 This is a schematic diagram of the initial state of the heel when it touches the ground in the present invention.

[0030] Figure 9 This is a schematic diagram of the initial state of the forefoot extension in this invention.

[0031] In the picture:

[0032] Shoe sole body 10 First mounting hole 11

[0033] Second mounting hole 12 First push block 20

[0034] Second propulsion block 30 sphere 40

[0035] Forefoot 101 Arch 102

[0036] Heel 103 Inner side 104

[0037] Outer side 105 First plate 106

[0038] Second plate section 107 Buffer hole 108

[0039] Connector plate 109 Detailed Implementation

[0040] To further explain the technical solution of the present invention, the following detailed description is provided in conjunction with embodiments.

[0041] Reference Figures 1 to 9 A shoe sole structure that aids in propulsion includes a sole body 10, in which a propulsion block for assisting propulsion is embedded. The hardness of the propulsion block is greater than that of the sole body 10. In this invention, the propulsion block is a carbon fiber propulsion block, a nylon propulsion block, or a PEBAX propulsion block, with a Shore hardness D value of 55-85. The sole body 10 generally includes an outsole and a midsole composited on the outsole. The midsole can be an EVA midsole, an ETPU midsole, or an ETPSIU midsole. ETPSIU, or expanded thermoplastic polysiloxane-polyurethane block copolymer, is an existing material for shoe soles, and the Shore hardness C value of the midsole is 42-55.

[0042] The heel portion 103 is positioned at the heel of the sole body 10, and the forefoot portion 101 is positioned at the front of the foot. An arch portion 102 is formed between the heel portion 103 and the forefoot portion 101. The side of the sole body 10 corresponding to the inner side of the instep is designated as the medial side 104, and the side of the sole body 10 corresponding to the outer side of the instep is designated as the lateral side 105. The push block includes a first plate portion 106 corresponding to the upper surface of the sole body 10, and a lower plate portion corresponding to the lower surface of the sole body 10. The surface is provided with a second plate portion 107 and multiple connecting plates 109 disposed between the first plate portion 106 and the second plate portion 107. Buffer holes 108 are formed between adjacent connecting plates 109. The multiple connecting plates 109 are arranged along the front-rear direction of the sole body 10. The upper end of the connecting plate 109 is connected to the first plate portion 106, and the lower end of the connecting plate 109 is connected to the second plate portion 107. The upper end of the connecting plate 109 is closer to the heel portion 103 of the sole body 10 than the lower end.

[0043] As a preferred embodiment of the present invention, the propulsion block is disposed on the heel portion 103 or the forefoot portion 101 of the sole body 10, or both the forefoot portion 101 and the heel portion 103 are provided with propulsion blocks.

[0044] In a preferred embodiment of the present invention, a buffer hole 108 is formed between two adjacent connecting plates 109, and the buffer hole 108 extends from the inner side 104 to the outer side 105 of the sole body 10. In a preferred embodiment of the present invention, the connecting plates 109 are arranged in parallel, and the connecting plates 109 extend from the inner side 104 to the outer side 105 of the sole body 10.

[0045] As a preferred embodiment of the present invention, the thickness of the first plate portion 106, the second plate portion 107, and the connecting plate 109 are all 0.8mm-1.8mm.

[0046] In a preferred embodiment of the present invention, the propulsion block includes a first propulsion block 20, which is disposed on the heel portion 103 and extends toward the arch portion 102, specifically extending to the rear end of the arch portion 102. The angle between the connecting plate 109 in the first propulsion block 20 and the horizontal plane (the angle involved in this application is...) Figure 7 The position shown at point A in the middle ranges from 60° to 70°, and the distance between the lower ends of adjacent connecting plates 109 (the distance involved in this application is...) Figure 7 The distance shown in d is in the range of 16-21mm.

[0047] When the thickness of the first plate 106, the second plate 107, and the connecting plate 109 in the first propulsion block 20 is 1.65mm, it can withstand a weight of 70kg. The material of the first propulsion block 20 is nylon with a Shore hardness D value of 73. The deformation of the heel 103 upon contact with the ground is tested.

[0048]

[0049]

[0050] Taking into account the deformation and the thickness of the heel 103 of the sole body 10, the optimal parameters are selected as follows: the distance between the lower ends of the adjacent connecting plates 109 is 16mm, and the angle between the connecting plate 109 and the horizontal plane is 65°. Under these parameters, compared with ordinary soles without propulsion blocks, the horizontal speed (horizontal propulsion speed) increases by 10%, the angular velocity increases by 20%, the horizontal thrust increases by 27%, and the vertical force decreases by 22%, which can achieve a smooth landing of the heel 103 and has a better cushioning effect.

[0051] In a preferred embodiment of the present invention, the propulsion block includes a second propulsion block 30, which is disposed on the forefoot portion 101 and extends toward the arch portion 102, specifically extending to the front end of the arch portion 102. The angle between the connecting plate 109 in the second propulsion block 30 and the horizontal plane is in the range of 38°-50°, and the distance between the lower ends of adjacent connecting plates 109 is in the range of 16-21mm.

[0052] When the thickness of the first plate 106, the second plate 107, and the connecting plate 109 in the second propulsion block 30 is 1.65mm, it can withstand a weight of 70kg. The material of the second propulsion block 30 is nylon, with a Shore hardness D value of 73. The deformation of the second propulsion block 30 during forefoot extension is tested.

[0053]

[0054]

[0055] Taking into account the deformation and the material thickness of the forefoot 101, the angle between the connecting plate 109 and the horizontal plane is selected to be 42.5°, and the distance between the lower ends of adjacent connecting plates 109 is 16mm. Within this parameter range, compared with the sole without a propulsion block, the horizontal speed (i.e., horizontal propulsion speed) can be increased by 25%, and the push-off angular velocity can be increased by 28.5%.

[0056] In a preferred embodiment of the present invention, the midsole includes a first midsole and a second midsole laminated on the first midsole, with the push block sandwiched between the first and second midsoles. After the first and second midsoles are laminated, a first mounting hole 11 and a second mounting hole 12 are formed between the first and second midsoles. The first push block 20 and the second push block 30 are respectively installed in the first mounting hole 11 and the second mounting hole 12 and further fixed by adhesive.

[0057] In a preferred embodiment of the present invention, the first plate portion 106 extends along the upper surface of the sole body 10, and the second plate portion 107 extends along the lower surface of the sole body 10. In another preferred embodiment, the first plate portion 106, the second plate portion 107, and the connecting plate 109 are integrally formed, with the rear end of the first plate portion 106 connected to the rear end of the second plate portion 107, and the front end of the first plate portion 106 connected to the front end of the second plate portion 107.

[0058] In this invention, Figure 7 During the test, the ball 40 falls vertically and presses against the push block. The push block deforms under pressure and causes the ball 40 to bounce back. The arrow indicates the trajectory of the center of gravity of the ball 40. It can be seen that after it moves vertically downward, the connecting plate 109 deforms under pressure, the ball 40 moves backward a short distance, and then bounces back upward.

[0059] The product form of the present invention is not limited to the embodiments described in this case. Any appropriate changes or modifications made to it based on similar ideas should be considered as not departing from the patent scope of the present invention.

Claims

1. A sole structure that aids in propulsion, comprising a sole body, wherein a propulsion block for assisting propulsion is embedded in the sole body, the hardness of the propulsion block being greater than the hardness of the sole body, the position of the sole body corresponding to the heel being designated as the heel portion, the position corresponding to the forefoot being designated as the forefoot portion, the sole body forming an arch portion between the heel portion and the forefoot portion, the side of the sole body corresponding to the inner side of the instep being designated as the medial side, and the side of the sole body corresponding to the outer side of the instep being designated as the lateral side, characterized in that: The propulsion block includes a first plate portion corresponding to the upper surface of the sole body, a second plate portion corresponding to the lower surface of the sole body, and multiple connecting plates disposed between the first plate portion and the second plate portion. Buffer holes are formed between adjacent connecting plates. The multiple connecting plates are arranged along the front-back direction of the sole body. The upper end of the connecting plate is connected to the first plate portion, and the lower end of the connecting plate is connected to the second plate portion. The upper end of the connecting plate is closer to the heel of the sole body than the lower end. The connecting plates are arranged to gradually tilt upward from front to back.

2. The sole structure for aiding in motion propulsion as described in claim 1, characterized in that: The propulsion block is disposed at the heel and / or forefoot of the sole body.

3. The sole structure for aiding in motion propulsion as described in claim 2, characterized in that: A buffer hole is formed between two adjacent connecting plates, and the buffer hole extends from the inside to the outside of the sole body.

4. The sole structure for aiding in motion propulsion as described in claim 3, characterized in that: The connecting plates are arranged in parallel, and the connecting plates extend from the inside to the outside of the sole body.

5. The sole structure for aiding in motion propulsion as described in claim 4, characterized in that: The push block includes a first push block. The sole body is provided with a first mounting hole, which extends from the inside to the outside of the sole body. The first push block is disposed at the heel and extends toward the arch. The angle between the connecting plate in the first push block and the horizontal plane is in the range of 60°-70°, and the distance between the lower ends of adjacent connecting plates is in the range of 16-21mm.

6. The sole structure for aiding in motion propulsion as described in claim 5, characterized in that: The angle between the connecting plate in the first propulsion block and the horizontal plane is 65°.

7. A sole structure for aiding in motion propulsion as described in claim 4, characterized in that: The propulsion block includes a second propulsion block. The sole body is provided with a second mounting hole, which extends from the inside to the outside of the sole body. The second propulsion block is disposed on the forefoot and extends towards the arch. The angle between the connecting plate in the second propulsion block and the horizontal plane is in the range of 38°-50°, and the distance between the lower ends of adjacent connecting plates is in the range of 16-21mm.

8. A sole structure for aiding in motion propulsion as described in claim 7, characterized in that: The angle between the connecting plate in the second propulsion block and the horizontal plane is 42.5°.

9. A shoe sole structure as described in claim 8 that aids in motion propulsion, characterized in that: The thickness of the first plate, the second plate, and the connecting plate is 0.8 mm to 1.8 mm.

10. A shoe sole structure for aiding in motion propulsion as described in claim 1, characterized in that: The sole body includes a midsole, which includes a first midsole and a second midsole composited on the first midsole, and the propulsion block is sandwiched between the first midsole and the second midsole.

11. A sole structure for aiding in motion propulsion as described in claim 10, characterized in that: The Shore hardness C value of the midsole is 42-55, and the Shore hardness D value of the propulsion block is 55-85.

12. A sole structure for aiding in motion propulsion as described in claim 11, characterized in that: The midsole is an EVA midsole, an ETPU midsole, or an ETPSIU midsole, and the propulsion block is a carbon fiber propulsion block, a nylon propulsion block, or a PEBAX propulsion block.

13. A shoe sole structure that aids in propulsion as described in claim 1, characterized in that: The first plate extends along the upper surface of the sole body, and the second plate extends along the lower surface of the sole body.

14. A sole structure for aiding in motion propulsion as described in claim 13, characterized in that: The first plate, the second plate, and the connecting plate are integrally formed. The rear end of the first plate is connected to the rear end of the second plate, and the front end of the first plate is connected to the front end of the second plate.

Images