A shoe for enhancing athletic performance

Abstract

The utility model relates to a shoe of promoting sports performance, include: sole, vamp and elastic lacing, the sole is fixedly connected with the vamp, the sole corresponds the metatarsophalangeal joint place and is set up with a plurality of lacing channels along the width direction, the elastic lacing is used to bind metatarsophalangeal joint, the elastic lacing passes through the lacing channel, and along the vamp is provided for wrapping foot, the utility model discloses the special structure of the elastic lacing around the metatarsophalangeal joint, according to the mechanical characteristics of each key position of foot in the process of movement, utilize the tension of elastic lacing, realize the consistency of each toe power, thereby promote the whole power efficiency design of foot, improve energy utilization efficiency, improve sports performance.

Description

Technical Field

[0001] This utility model relates to the field of footwear technology, and in particular to a shoe that improves athletic performance. Background Technology

[0002] One of the purposes of athletic shoe products is to improve athletic performance. With the development of midsole materials and technologies, supercritical technology has made midsoles increasingly less dense and more elastic, and the use of carbon plates is becoming more and more common in athletic shoes. The main methods to improve athletic performance are concentrated on the sole, that is, to build carbon plates (nylon plates) inside the sole to increase the longitudinal bending stiffness of the sole, in order to increase the lever arm of the calf muscles or to use the stiffness of the carbon plate to increase rolling during the push-off, thereby improving athletic performance. Most existing athletic shoes only focus on the support and stability performance of the sole and the force exerted by the foot, and there is little research on technologies that utilize the energy at the metatarsophalangeal joint through the structure of the sole and upper to improve the energy release in the transverse arch area of ​​the forefoot. Summary of the Invention

[0003] The purpose of this invention is to provide a shoe that improves athletic performance, addressing the problem that most existing athletic shoes only focus on the support and stability of the sole and the force exerted by the foot, and rarely improve athletic performance through the structure of the sole and upper.

[0004] To achieve the above objectives, this utility model discloses a shoe for improving athletic performance, comprising: a sole, an upper, and an elastic cord. The sole is fixedly connected to the upper. The sole has several cord-threading channels along its width at the metatarsophalangeal joint. The elastic cord is used to bind the metatarsophalangeal joint. The elastic cord passes through the cord-threading channels and is arranged along the upper to wrap the foot.

[0005] Preferably, it includes a drawstring adjustment device for adjusting the tension of the elastic drawstring, the drawstring adjustment device being disposed on the shoe upper, and the elastic drawstring being connected to the drawstring adjustment device.

[0006] Preferably, the rope adjustment device is a tension knob.

[0007] Preferably, the elastic cord is a TPU filament or a polyethylene fiber cord.

[0008] Preferably, the lacing channel is a groove formed on the upper surface of the sole, or the lacing channel is a lacing hole formed on the sole.

[0009] Preferably, the groove has a cross-sectional shape that is larger at the bottom and smaller at the top; the lanyard hole is U-shaped, and the openings at both ends of the lanyard hole are located on the upper surface of the sole.

[0010] Preferably, the shoe upper has a layer, and the elastic cord is threaded through the layer.

[0011] Preferably, the lacing channels are provided in N groups, and the lacing channels from the toe direction to the sole are sequentially the first lacing channel to the nth lacing channel, where n is a natural number less than or equal to N; after the head end of the elastic cord passes through the nth lacing channel, it spirals along the shoe upper to the next lacing channel, until it is wound from the end of the Nth lacing channel to the inlet end of the cord adjustment device, and then wound out along the outlet end of the cord adjustment device and connected to the tail end of the elastic cord.

[0012] Preferably, the threading channels are provided in N groups, and the threading channels from the toe direction to the sole are sequentially designated as the first threading channel to the nth threading channel, where n is a natural number less than or equal to N. The threading channels are divided into two groups: odd-numbered threading channels and even-numbered threading channels. The head end of the elastic cord passes through the odd-numbered threading channel, then spirals along the shoe upper in a first direction to the next odd-numbered threading channel, until it reaches the end of the last odd-numbered threading channel and is wound to the inlet end of the cord adjustment device, exiting along the outlet end of the cord adjustment device. The elastic cord exiting the outlet end connects to the last even-numbered threading channel, then spirals along the shoe upper in a second direction to the previous even-numbered threading channel, until it exits from the end of the first even-numbered threading channel and connects to the tail end of the elastic cord. The first direction is clockwise, and the second direction is counterclockwise; or the first direction is counterclockwise, and the second direction is clockwise.

[0013] Preferably, a carbon plate is provided inside the sole, and the lacing channel is located above the carbon plate.

[0014] This utility model has the following beneficial effects: 1. This utility model utilizes the special structure of elastic cords wrapped around the metatarsophalangeal joints. Based on the mechanical characteristics of key parts of the foot during movement, the tension of the elastic cords is used to achieve consistency in the force exerted by each toe, thereby improving the overall force exertion efficiency of the foot, increasing energy utilization efficiency, and enhancing athletic performance.

[0015] 2. The design of the cord channel prevents the elastic cord from shifting and avoids the feeling of foreign objects when the user wears the shoes, thus increasing comfort.

[0016] 3. The tension of the elastic cord can be easily adjusted using the cord adjustment device.

[0017] 4. The performance of the sole can be improved by setting up a carbon fiber plate. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of Example 1.

[0019] Figure 2This is a cross-sectional view of the sole (the lacing channel is a groove).

[0020] Figure 3 This is a schematic diagram of the shoe sole structure (the lacing channel is a groove).

[0021] Figure 4 This is a schematic diagram of the shoe sole structure (the lacing channel is the lacing hole).

[0022] Figure 5 This is a cross-sectional view of the shoe (elastic drawstrings are threaded through the upper layer).

[0023] Figure 6 This is a cross-sectional view of the shoe (the elastic drawstring is threaded through the outside of the shoe upper, and the drawstring hole is U-shaped).

[0024] Figure 7 This is a cross-sectional view of the shoe (the elastic drawstring is threaded through the outside of the shoe upper, and the drawstring hole is in a straight line).

[0025] Figure 8 This is a schematic diagram of the elastic cord binding the feet provided in a specific embodiment of this utility model.

[0026] Figure 9 This is a schematic diagram of the elastic cord binding the feet in a specific embodiment of the present invention (elastic cord deformation).

[0027] Figure 10 A diagram showing the location of the lacing channel in the sole of the shoe.

[0028] Figure 11 This is a schematic diagram of the shoe sole provided in Example 2.

[0029] Figure 12 This is a schematic diagram of the elastic cord threading method provided in Example 1 (three threading channels).

[0030] Figure 13 This is a schematic diagram of the threading of an elastic rope with four threading channels.

[0031] Figure 14 This is a schematic diagram of the overall structure of Example 4.

[0032] Figure 15 This is a schematic diagram of threading the elastic cord provided in Example 4.

[0033] Explanation of symbols for main components: 100. Sole; 110. Drawstring channel; 110a. Groove; 110b. Drawstring hole; 111. First drawstring channel; 112. Second drawstring channel; 113. Third drawstring channel; 114. Fourth drawstring channel; 115. Fifth drawstring channel; 116. Sixth drawstring channel; 120. Carbon fiber plate; 200. Upper; 210. Drawstring adjustment device; 220. Interlayer; 300. Elastic drawstring. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0035] Example 1 like Figure 1 This utility model provides a shoe for improving athletic performance, comprising: a sole 100, an upper 200, and an elastic drawstring 300. The sole 100 is fixedly connected to the upper 200. Figure 10 As shown, the sole 100 has three lanyard channels 110 along its width corresponding to the metatarsophalangeal joint. The lanyard channels 110 secure the position of the elastic band 300 and prevent the foot from stepping on the elastic band 300, thus improving comfort when wearing the shoe. The elastic band 300 is used to restrain the metatarsophalangeal joint. The elastic band 300 is made of TPU filament; one band wraps around the metatarsophalangeal joint, and the other two bands are on the outside of the joint, covering it. In other embodiments, the elastic band 300 can also be made of polyethylene fiber rope.

[0036] Since the elastic drawstring is used to adjust the length to achieve tightness adjustment, the cross-section of the elastic drawstring is generally circular. In some embodiments, the elastic drawstring 300 can also be set to a flat shape, which can reduce local pressure on the foot and improve wearing comfort. The elastic drawstring 300 is set on the side of the upper 200 near the sole 100.

[0037] The elastic drawstring 300 can be set along the shoe upper 200 after passing through the drawstring channel 110 in the following two ways: 1. For example Figure 5 As shown, the shoe upper 200 has a layer 220, and the elastic drawstring 300 passes through and is threaded within the layer 220, serving to conceal the elastic drawstring 300, adjust its threading path, and improve comfort when wearing the shoe. 2. As Figure 6 As shown, the elastic drawstring 300 can also be threaded through the sole and placed directly on the outer side of the upper 200 away from the foot, while also serving as a decoration for the upper.

[0038] There are two ways to construct a rope tunnel: 1. For example Figure 2 ,3 As shown in Figure 5, the lanyard channel 110 can be a groove 110a formed on the upper surface of the sole 100. The groove 110a is easy to create and has a relatively low cost. The length of the groove 110a should be shorter than the width of the sole 100 at the groove location, meaning the groove does not connect the two sides of the sole 100. When the elastic cord 300 is installed in the groove 110a, the elastic cord 300 extends from the joint between the upper 200 and the sole 100, adhering to the upper 200. In other embodiments, the groove 110a can also extend through the width of the sole 100. To prevent the elastic cord 300 from coming out of the groove 110a, the cross-sectional shape of the groove 110a can be set to be larger at the bottom and smaller at the top, such as... Figure 2 In the middle, the size of the upper opening is a, and the size of the lower opening is b, where b > a. Because the elastic cord has a certain deformation, a certain external force is applied during assembly to press the elastic cord into the groove 110a. During use, because the size a above the groove is less than the diameter of the elastic cord, the elastic cord 300 is not easy to come out.

[0039] 2. For example Figure 4 , 6 As shown in Figure 7, the lacing channel 110 is configured as a lacing hole 110b along the width direction of the sole. The shape of the lacing hole 110b can be as follows: Figure 6 The design is U-shaped, with the openings at both ends of the lanyard hole 110b located on the upper surface of the sole 100. Alternatively, it can be... Figure 7 The text is set to a single line.

[0040] like Figure 1 A drawstring adjustment device 210 is provided on the shoe upper 200. The drawstring adjustment device 210 is used to adjust the tension of the elastic drawstring 300. The drawstring adjustment device 210 is a tension knob, and the elastic drawstring 300 is connected to the drawstring adjustment device 210. The tension knob can be a semi-automatic shoelace buckle disclosed in CN207152056U, or a roller-based closing device disclosed in CN110049694A. The tension knob is a common shoelace buckle on the market. The tension knob is often used with shoelaces. Simply rotating the knob can loosen or tighten the shoelaces. The elastic drawstring 300 is connected to the tension knob and serves the same function. Simply rotating the knob can loosen or tighten the elastic drawstring 300. The tension knob can be used to quickly adjust the binding force of the elastic drawstring 300 on the metatarsophalangeal joint. Each elastic cord 300 needs to be equipped with at least one cord adjustment device 210. When two cord adjustment devices 210 are configured on an elastic cord 300, a better restraint effect can be provided.

[0041] There are N sets of rope-threading channels 110, and the rope-threading channels 110 from the toe direction to the sole of the foot are sequentially named from the first rope-threading channel 111 to the nth rope-threading channel, where n is a natural number less than or equal to N. For example... Figure 3 As shown, N=3, n=1, 2, 3. The rope-threading channels from the toes to the soles of the feet are, in sequence, the first rope-threading channel 111, the second rope-threading channel 112, and the third rope-threading channel 113.

[0042] Combination Figure 12 As shown, the arrows indicate the threading direction of the elastic cord 300, and the numbers below each arrow correspond to the threading order, as explained below: (1) The head end of the elastic cord 300 is passed from the starting position A in the figure along the first cord passage 111 to the other end.

[0043] (2) The rope is spirally wound from the end of the first rope channel 111 along the shoe surface to one end of the second rope channel 112.

[0044] (3) Pass the rope through one end of the second rope passage 112 to the other end.

[0045] (4) The rope is spirally wound from the end of the second rope channel 112 along the shoe surface to one end of the third rope channel 113.

[0046] (5) Pass the rope through one end of the third rope passage 113 to the other end.

[0047] (6) It is wound from the end of the third rope channel 113 to the entrance end of the rope adjustment device 210.

[0048] (7) The rope is wound around the outlet end of the rope adjustment device 210 and connected to the tail end of the elastic rope 300, that is, at the starting position A, the head end and tail end of the elastic rope are connected together.

[0049] In other embodiments, more rope-threading channels can be provided, such as... Figure 13 There are four sets of rope-threading channels in the middle.

[0050] The principle behind this invention's shoe's ability to improve athletic performance is as follows: The metatarsophalangeal joint, as the terminal node of the lower limb force chain (hip → knee → ankle → metatarsophalangeal joint → ground), plays a crucial role in the "cushioning-extension" cycle during movement. For example, it flexes to cushion the impact when landing while running and extends to generate propulsion when pushing off. By introducing an external elastic element, the elastic cord 300, the biomechanical characteristics of this joint have been reconstructed.

[0051] Its core mechanism lies in constructing a "storage-release" cycle of elastic potential energy, effectively supplementing muscle exertion. For example... Figure 8 and Figure 9The elastic cord 300 deforms in sync with the metatarsophalangeal joint movement: during the landing cushioning phase, the body's gravity and the ground reaction force passively extend the metatarsophalangeal joint (toes lift), at which point the elastic cord 300 is stretched, converting mechanical energy into stored elastic potential energy, similar to a spring being stretched; during the push-off phase, the plantar flexor muscles actively contract, driving joint flexion (toes push off the ground), and the elastic cord 300 shortens and returns to its original position, releasing the stored elastic potential energy instantly. This elastic force, combined with the force generated by the active muscle contraction, forms a combined force output of "muscle force + elastic force." It overcomes the limitation that propulsion relies solely on active muscle contraction. Although the body's own muscle-tendon units (such as the plantar fascia and gastrocnemius tendon) also possess a certain elastic energy storage capacity, its capacity is limited. The addition of the elastic cord 300 is equivalent to adding an "extra elastic energy storage unit," which increases the peak power of the push-off from the metatarsophalangeal joint and directly translates into improved actual athletic performance through increased stride length or cadence.

[0052] Furthermore, the elastic band 300 significantly improves athletic economy, that is, the ratio of energy expenditure to exercise output per unit time, which is crucial for endurance sports such as middle- and long-distance running. During exercise, if the metatarsophalangeal joints hyperextend (e.g., the foot is excessively flattened upon landing) or undergo non-functional lateral displacement, it will cause a "force line shift" in the lower limb force chain—the force that should be efficiently transmitted to the ground along the midline of the foot will partially leak to the outer or inner side of the foot, forming a useless "component force." To compensate for this loss of force, the muscles have to do extra work, resulting in wasted energy. The elastic band 300, through its physical restraint, effectively constrains joint hyperextension (longitudinal restraint) and lateral displacement (lateral restraint). This constraint ensures that the lower limb force can be efficiently transmitted to the ground along a "straight path," minimizing the consumption of component forces, thereby increasing the "effective proportion" of work done by each muscle contraction, and thus indirectly extending the athlete's endurance limit.

[0053] Example 2 The main difference between this embodiment and Embodiment 1 is that: Figure 11 As shown, a carbon plate 120 is provided inside the sole 100, and a lacing channel 110 is located above the carbon plate 120. The carbon plate 120 can further improve the athletic performance of the sole 100.

[0054] Example 3 The main difference between this embodiment and embodiment one is that the drawstring adjustment device 210 is not included, and the elastic drawstring 300 is fixed on the shoe upper 200 by knotting.

[0055] Example 4 like Figure 14As shown, the main difference between this embodiment and Embodiment 1 is that this embodiment also provides another method of threading the cord. N groups of cording channels 110 are provided, and the cording channels 110 from the toe direction to the sole are sequentially designated as the first cording channel 111 to the nth cording channel, where n is a natural number less than or equal to N. The cording channels are divided into two groups: odd-numbered cording channels and even-numbered cording channels. The head end of the elastic cord 300 passes through the odd-numbered cording channel, then spirals along the shoe upper in a first direction to the next odd-numbered cording channel, until it reaches the entrance end of the cording adjustment device 210 from the end of the last odd-numbered cording channel, and exits along the exit end of the cording adjustment device 210. The elastic cord 300 exiting the exit end connects to the last even-numbered cording channel, then spirals along the shoe upper in a second direction to the previous even-numbered cording channel, until it exits from the end of the first even-numbered cording channel and connects to the tail end of the elastic cord. The first direction is clockwise, and the second direction is counterclockwise; or the first direction is counterclockwise, and the second direction is clockwise. The elastic bands are arranged in an odd-even crisscross pattern, providing good elastic restraint on the feet and thus improving athletic performance.

[0056] Combination Figure 15 The specific details are as follows: N=6, n=1, 2, 3, 4, 5, 6. The odd-numbered rope-threading channels, i.e., n=1, 3, 5, are: first rope-threading channel 111, third rope-threading channel 113, and fifth rope-threading channel 115, respectively. The even-numbered rope-threading channels, i.e., n=2, 4, 6, are: second rope-threading channel 112, fourth rope-threading channel 114, and sixth rope-threading channel 116, respectively. Figure 15 The direction of threading the elastic cord 300 is indicated by the arrow. The number below each arrow corresponds to the threading order, as follows: (1) The head end of the elastic cord 300 is passed from the starting position A in the figure along the first cord passage 111 to the other end.

[0057] (2) The rope is spirally wound from the end of the first rope channel 111 along the shoe surface to one end of the third rope channel 113.

[0058] (3) Pass the rope through one end of the third rope passage 113 to the other end.

[0059] (4) The rope is spirally wound from the end of the third rope channel 113 along the shoe surface to one end of the fifth rope channel 115.

[0060] (5) Pass through one end of the fifth rope passage 115 to the other end.

[0061] (6) It is wound from the end of the fifth rope channel 115 to the entrance end of the rope adjustment device 210.

[0062] (7) It extends out from the outlet end of the rope adjustment device 210 and connects to one end of the sixth rope channel 116.

[0063] (8) Pass through one end of the sixth rope passage 116 to the other end.

[0064] (9) The rope is spirally wound from the end of the sixth rope channel 116 along the shoe surface to one end of the fourth rope channel 114.

[0065] (10) Pass through one end of the fourth rope passage 114 to the other end.

[0066] (11) The rope is spirally wound from the end of the fourth rope channel 114 along the shoe surface to one end of the second rope channel 112.

[0067] (12) Pass the rope through one end of the second rope passage 112 to the other end.

[0068] (13) Connect the end of the second rope channel 112 to the end of the elastic rope 300, that is, at the starting position A, connect the head end and the tail end of the elastic rope together.

[0069] In the above processes (1) to (6), the winding direction of the elastic rope is counterclockwise, and in processes (8) to (13), the winding direction of the elastic rope is clockwise.

[0070] Those skilled in the art can also devise other similar rope-threading methods as needed to achieve the purpose of this utility model. The above description is merely a preferred embodiment of this utility model, but the scope of protection of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the scope of protection of this utility model.

Claims

1. A shoe that enhances athletic performance, characterized in that, include: The shoe includes a sole (100), an upper (200), and an elastic drawstring (300). The sole (100) is fixedly connected to the upper (200). The sole (100) has several drawstring channels (110) along the width direction corresponding to the metatarsophalangeal joint of the human body. The elastic drawstring (300) passes through the drawstring channels (110) and is set along the upper (200) to wrap the foot.

2. The shoe for improving athletic performance according to claim 1, characterized in that: It also includes a drawstring adjustment device (210), which is used to adjust the tightness of the elastic drawstring (300). The drawstring adjustment device (210) is disposed on the shoe upper (200), and the elastic drawstring (300) is connected to the drawstring adjustment device (210).

3. A shoe for improving athletic performance according to claim 2, characterized in that: The rope adjustment device (210) is a tension knob.

4. The shoe for improving athletic performance according to claim 1, characterized in that: The elastic cord (300) is made of TPU filament or polyethylene fiber cord.

5. A shoe for improving athletic performance according to claim 1, characterized in that: The lanyard channel (110) is a groove formed on the upper surface of the sole (100), or the lanyard channel (110) is a lanyard hole formed on the sole (100).

6. A shoe for improving athletic performance according to claim 5, characterized in that: The groove has a cross-sectional shape that is larger at the bottom and smaller at the top; the rope hole is U-shaped, and the openings at both ends of the rope hole are located on the upper surface of the sole (100).

7. A shoe for improving athletic performance according to claim 1, characterized in that: The shoe upper (200) is provided with a layer (220), and the elastic cord (300) is threaded through the layer (220).

8. A shoe for improving athletic performance according to any one of claims 1 to 7, characterized in that: The rope-threading channel (110) is provided in N groups, and the rope-threading channel (110) from the toe direction to the sole of the foot is successively the first rope-threading channel (111) to the nth rope-threading channel, where n is a natural number less than or equal to N; After the head end of the elastic cord (300) passes through the nth cord channel, it spirals along the shoe upper to the next cord channel, until it is wound from the end of the Nth cord channel to the inlet end of the cord adjustment device (210), and then wound out along the outlet end of the cord adjustment device (210) and connected to the tail end of the elastic cord (300).

9. A shoe for improving athletic performance according to any one of claims 1 to 7, characterized in that: The rope-threading channel (110) is provided in N groups, and the rope-threading channel (110) from the toe direction to the sole of the foot is sequentially the first rope-threading channel (111) to the nth rope-threading channel, where n is a natural number less than or equal to N; the rope-threading channel is divided into two groups, namely the rope-threading channel with odd positions and the rope-threading channel with even positions. The head end of the elastic cord (300) passes through the odd-numbered cord passage, and then spirals along the shoe surface in the first direction to the next odd-numbered cord passage, until it is wound from the end of the last odd-numbered cord passage to the inlet end of the cord adjustment device (210), and then out along the outlet end of the cord adjustment device (210). The elastic cord (300) that comes out of the outlet end is connected to the last even-numbered cording channel, and then spirally wound along the upper in the second direction to the previous even-numbered cording channel, until it comes out from the end of the first even-numbered cording channel and is connected to the end of the elastic cord. The first direction is clockwise and the second direction is counterclockwise; or the first direction is counterclockwise and the second direction is clockwise.

10. A shoe for improving athletic performance according to claim 1, characterized in that: A carbon plate (120) is provided inside the sole (100), and the rope-threading channel (110) is located above the carbon plate (120).

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