Shoe capable of adjusting bending rigidity of insole

Abstract

The invention discloses a shoe capable of adjusting the bending rigidity of a midsole, the shoe comprises a shoe body, the shoe body comprises a sole, a vamp arranged on the sole and a first knob mounted on the vamp, the sole comprises the midsole, and the midsole is provided with a half sole part, a middle waist part and a heel part; the half sole part is provided with a wave structure, the wave structure comprises a plurality of wave parts arranged in the width direction of the midsole, the wave parts are sequentially arranged in the length direction of the midsole, and the two ends of each wave part extend to the edge of the midsole; two adjusting ropes capable of being tensioned or loosened are arranged in the first knob, and one ends of the two adjusting ropes are arranged on the two sides of the front end of the half sole part respectively. The device is simple in structure, the adjusting mode is easy to operate, and the bending rigidity of the insole can be adjusted according to actual use scenes.

Description

Technical Field

[0001] The present invention relates to the technical field of shoes, and more particularly to a pair of shoes with adjustable midsole bending stiffness. Background Art

[0002] Sports shoes are a type of footwear specially designed for various sports activities. They have the functions of protecting the feet, providing comfort and enhancing sports performance. The midsole bending stiffness is a core element in the design of sports shoes. It determines the degree of bending and the ability to resist bending of the midsole part during the wearer's exercise, especially when walking, running or jumping, and is crucial to the comfort of the shoe.

[0003] However, different consumers have different wearing demands in different sports scenarios. Some consumers hope that the shoes can meet both the comfort requirements in low-intensity sports such as walking and strolling, and the support and flexibility requirements in high-intensity sports such as running. However, the midsole bending stiffness of sports shoes on the market is either fixed, or the structure for adjusting the midsole bending stiffness is relatively complex.

[0004] In view of this, the present applicant conducted in-depth research on this basis, which led to the emergence of this case. Summary of the invention

[0005] The purpose of the present invention is to provide a shoe with a simple structure and adjustable midsole bending stiffness.

[0006] To achieve the above object, the solution of the present invention is: A shoe with adjustable midsole bending stiffness comprises a shoe body, the shoe body comprising a sole, an upper arranged on the sole and a first knob installed on the upper, the sole comprising a midsole, the midsole being provided with a forefoot portion, a mid-waist portion and a heel portion; the forefoot portion being provided with a wave structure, the wave structure comprising a plurality of wave portions arranged along the width direction of the midsole, each of the wave portions being arranged in sequence along the length direction of the midsole, and both ends of each of the wave portions extending to the edge of the midsole; two adjustment ropes which can be tightened or loosened are arranged in the first knob, and one end of the two adjustment ropes is respectively arranged on both sides of the front end of the forefoot portion.

[0007] Each of the wave portions is an arc-shaped structure that is raised in a direction close to the shoe upper.

[0008] The wave portions are arranged continuously along the length direction of the midsole.

[0009] The midsole is provided with a hollow structure at positions corresponding to the forefoot portion and the mid-waist portion, and the hollow structure includes at least one hollow hole, and each of the hollow holes is arranged along the width direction of the midsole.

[0010] There are a plurality of hollow holes, each of which is sequentially arranged along the length direction of the midsole, and the length of each of the hollow holes is gradually reduced in a direction away from the forefoot portion.

[0011] An opening is provided on the front side of the forepalm part, and a thumb part and four finger parts are provided on the forepalm part through the opening. Locking holes are provided at the front ends of the thumb part and the four finger parts respectively, and one end of the two adjustment ropes are respectively locked in the corresponding locking holes.

[0012] Elastic wings are connected to both sides of the middle waist portion, both of which are in strip shape, and the parts of the two elastic wings adjacent to their respective connection positions extend upward and twist respectively, and the other ends of the two elastic wings are respectively extended backward.

[0013] The shoe body also includes a second knob, which is installed on the vamp. Two adjustment ropes are arranged in the second knob. One end of the two adjustment ropes extends into the vamp respectively and is fixedly connected to the two sides of the vamp corresponding to the instep of the forefoot.

[0014] 9. A shoe with adjustable midsole bending stiffness according to claim 5, characterized in that: the shoe body also includes a third knob, the third knob is installed on the upper, two adjustment ropes are arranged in the third knob, one end of the two adjustment ropes respectively extends into the upper, and is fixedly connected to the two sides of the upper corresponding to the midfoot instep.

[0015] The midsole is made of a TPU plate or a nylon plate.

[0016] After adopting the above structure, the present invention has the following beneficial effects: 1. The present invention adopts a wave structure arranged in the forefoot part of the midsole, and the wave structure provides a good bending effect for the midsole, which is convenient for adjusting the bending angle of the forefoot part of the midsole. In addition, the present invention adopts the rotation of the first knob to drive the two adjustment ropes in the first knob to be tightened or loosened synchronously, so that the front end of the forefoot part of the midsole is raised or lowered, thereby adjusting the bending degree of the forefoot part of the midsole relative to the horizontal plane. In this way, the structure is simple and the adjustment method is easy to operate. The wearer can adjust the bending stiffness of the midsole according to the actual use scenario; and, the two ends of the adjustment rope are respectively fixed on the midsole, so that the structure for adjusting the bending of the midsole is relatively stable, and it is not easy to deform the bending part of the forefoot part of the midsole when the wearer exercises.

[0017] 2. The present invention adopts the setting of the hollow structure on the midsole, and the progressive hollow design of each hollow hole in the hollow structure can provide a better bending effect for the forefoot part of the midsole, and further facilitate the wearer to adjust the bending stiffness.

[0018] 3. The present invention adopts the setting of two elastic wings, which can provide shock-absorbing and propulsive effects to the wearer's steps during exercise.

[0019] 4. The present invention adopts the setting of the second knob to adjust the degree of wrapping of the shoe surface on the wearer's forefoot and instep to adapt to feet of different thicknesses and improve wearing comfort.

[0020] 5. The present invention adopts the setting of the third knob to adjust the degree of wrapping of the shoe surface on the wearer's midfoot and instep, thereby improving wearing comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural diagram of embodiment 1.

[0022] Figure 2 This is a schematic diagram of the decomposition of the first embodiment.

[0023] Figure 3 Schematic diagram of the structure of the midsole in Example 1.

[0024] Figure 4 This is a schematic diagram of the assembly of the midsole and the first knob in Example 1.

[0025] Figure 5 This is a schematic diagram of the coordination between the midsole and the knob in the second embodiment.

[0026] Figure 6 This is a schematic diagram of the coordination between the midsole and the knob in the third embodiment.

[0027] Figure 7 Schematic diagram of the foot wrapping area in the present invention.

[0028] In the figure: 100-shoe body; 1-sole; 11-outsole; 12-midsole; 121-locking hole; 122-opening; 13-insole; 2-upper; 3-wavy part; 4-first knob; 41-adjusting rope one; 5-hollow hole; 6-elastic wing; 7-second knob; 71-adjusting rope two; 8-third knob; 81-adjusting rope three. DETAILED DESCRIPTION

[0029] In order to further explain the technical solution of the present invention, the present invention is described in detail below through specific embodiments.

[0030] Embodiment 1 A shoe with adjustable midsole bending stiffness, such as Figure 1-4As shown, it includes a shoe body 100, and the shoe plate body 100 includes a sole 1 and an upper 2 arranged on the sole 1, the sole 1 includes an outsole 11, a midsole 12 and an insole 13 arranged in sequence from bottom to top. The outsole 11 and the insole 13 in this embodiment are both existing conventional bottom materials, for example, the outsole 11 and the insole 13 are both made of the common bottom materials on sports shoes on the market, so they are not described in detail; the upper 2 is also an existing conventional upper, for example, the upper is made of the upper commonly used in sports shoes on the market; wherein, the shape and size of the above-mentioned midsole 12 are respectively adapted to the shape and size of the conventional midsole, and the midsole 12 is provided with a forefoot portion, a mid-waist portion and a heel portion, the forefoot portion of the midsole 12 corresponds to the forefoot position of the human foot, the mid-waist portion of the midsole 12 corresponds to between the forefoot position and the heel position of the human foot, and the heel portion of the midsole 12 corresponds to the heel position of the human foot.

[0031] For the convenience of description, the length direction of the sole 1 is taken as the front-to-back direction, and the width direction of the sole 1 is taken as the left-to-right direction.

[0032] The improvement of the present invention lies in that the forefoot part of the above-mentioned midsole 12 is provided with a wave structure, which includes a plurality of wave portions 3, each wave portion 3 is arranged along the left-right direction, and each wave portion 3 is connected to the two side edges of the midsole 12, that is, the two ends of each wave portion 3 extend to the left side and the right side of the midsole 12 respectively, and each wave portion 3 is arranged in sequence along the front-to-back direction, so that the forefoot part of the midsole 12 can be bent by the wave structure, that is, the front end curvature of the midsole 12 can be adjusted; the above-mentioned shoe body 100 also includes a first knob 4, and two adjustment ropes are arranged in the first knob 4. For the convenience of description, the adjustment rope is an adjustment rope 41, and the first ends of the two adjustment ropes 41 are respectively fixedly connected to the first knob 4, and the second ends of the two adjustment ropes 41 are respectively fixedly connected to the front end of the forefoot part of the midsole 12, and are respectively arranged on the left and right sides of the midsole 12.

[0033] Specifically, in the above-mentioned wave structure, each wave portion 3 is an arc-shaped structure that is convex along the direction close to the upper 2. In this embodiment, each wave portion 3 can be a semi-circular arc shape to facilitate bending of the forefoot part of the midsole 1; preferably, every two adjacent wave portions 3 are connected end to end from front to back, so that each wave portion 3 forms a continuous wave, thereby achieving a larger angle bending effect of the midsole 12.

[0034] Furthermore, the above-mentioned midsole 12 is provided with a hollow structure, which is arranged in the area between the rear side of the forefoot part and the front side of the midwaist part to assist the bending of the forefoot part of the midsole. In detail, the hollow structure includes at least one hollow hole 5. When there is one hollow hole 5, the hollow hole 5 is a strip hole, and the hollow hole 5 extends along the left and right directions of the midsole 12; preferably, in this embodiment, there are multiple hollow holes 5, each hollow hole 5 is a strip hole, and each hollow hole 5 is arranged in sequence along the front and back directions of the midsole 12, and the length of each hollow hole 5 is gradually reduced from front to back, thereby providing a better bending effect for the midsole 12.

[0035] Furthermore, the first knob 4 mentioned above adopts a rotary buckle commonly used in the existing footwear industry. The knob used in this embodiment is a rotary buckle on the market that can realize the tightness of the shoelaces on the shoe. The structure of this type of knob is an existing conventional technology, and the two adjustment ropes are respectively wound in the knob in the same direction. This winding method is also an existing conventional operation, so it will not be described in detail.

[0036] The left and right sides of the front end of the forefoot part of the midsole 12 are respectively provided with locking holes 121, and both locking holes 121 are through holes. Two adjusting ropes 41 are respectively arranged one-to-one with the two locking holes 121, and the first ends of the two adjusting ropes 41 are respectively fixedly connected to the corresponding locking holes 121; in detail, the installation structure of the two adjusting ropes 41 is the same, and one end is used as an example for explanation. The first end of the adjusting rope 41 is fixed in the first knob by knotting, and the second end of the adjusting rope 41 passes through the upper 2 and the insole 13 in turn, and then the second end of the adjusting rope 41 is knotted to achieve a fixed connection. The adjusting rope 41 is made of a high-strength shoe rope material matched with an existing shoe knob, such as a low-elongation polymer rope, or a rope of the same material as that of bicycle lock shoes on the market; wherein, channels are respectively reserved on both sides of the upper 2 for the adjusting rope 41 to pass through, and at the same time, the insole 13 is respectively provided with through holes corresponding to the positions of the two locking holes for the adjusting rope 41 to contract. Preferably, the above-mentioned midsole 12 can be selected from a conventional midsole with separated thumb and four fingers, as described below, an opening 122 is provided on the front side of the forefoot part of the midsole 12, and the forefoot part is divided into a thumb part and a four-finger part through the opening 122, and the above-mentioned two locking holes 121 are respectively provided on the thumb part and the four-finger part.

[0037] Furthermore, the midsole 12 is made of a TPU plate, a carbon plate or a nylon plate.

[0038] In this embodiment, before the wearer performs running exercise, the wearer first rotates the first knob 4 to tighten the two adjustment ropes 41 synchronously. The tightening of the two adjustment ropes 41 drives the front end of the midsole 12 to tilt upward, thereby increasing the bending angle of the forefoot portion of the midsole 12 relative to the horizontal plane. After the bending angle is adjusted to the desired angle, the first knob 4 can be loosened. When the wearer performs daily activities such as walking and strolling, the wearer first rotates the first knob 4 in the opposite direction to loosen the two adjustment ropes 41 synchronously. The loosening of the two adjustment ropes 41 drives the front end of the midsole 12 to fall downward, thereby decreasing the bending angle of the forefoot portion of the midsole 12 relative to the horizontal plane. After the bending angle is adjusted to the desired angle, the first knob 4 can be loosened, thereby achieving the adjustment of the bending stiffness of the midsole.

[0039] Embodiment 2 like Figure 5 As shown, this embodiment adds a forefoot wrapping structure based on the first embodiment, as described in detail as follows.

[0040] The above-mentioned shoe body 100 also includes a second knob 7, which is installed on the upper 2. Two adjustment ropes are arranged in the second knob 7. For the convenience of description, the adjustment rope is referred to as adjustment rope 2 71. The first ends of the two adjustment ropes 2 71 are respectively fixedly connected to the second knob 7, and the second ends of the two adjustment ropes 2 71 extend into the upper 2 respectively, and are fixedly connected to the rear side of the upper 2 corresponding to the forefoot part, that is, the forefoot position of the upper 1, and the second ends of the two adjustment ropes 2 71 are respectively arranged on the left and right sides of the upper 2, wherein the second ends of the adjustment ropes 2 71 pass through the upper 2, are connected to the accessories of the upper 2, or are embedded in the upper 2 to form a whole. For example, the bottom of the upper 2 is integrally connected with two back-to-back rope channels, and the two rope channels are arranged along the circumference of the upper 2. The second ends of the two adjustment ropes 2 71 are respectively fixedly connected to the corresponding rope channels.

[0041] In this way, when in use, the second knob 7 is rotated to drive the two adjustment ropes 71 to be tightened synchronously, so that the forefoot instep b of the upper 2 is wrapped more tightly to meet the needs of the wearer, especially during intense exercise; the second knob 7 is rotated in the opposite direction to drive the two adjustment ropes 71 to extend, so that the forefoot instep b of the upper 2 is wrapped loosely to meet the needs of the wearer, especially when the wearer feels swollen in the foot after standing for a long time or running.

[0042] In this embodiment, the shoe body 100 can adjust the bending stiffness of the sole 2 corresponding to the forefoot part, and can also adjust the upper 2 to the forefoot instep b, that is, Figure 7 The b area in the middle meets the needs of the wearer.

[0043] Embodiment 3 like Figure 6As shown, this embodiment adds an instep wrapping structure based on the first embodiment, as described in detail below.

[0044] The above-mentioned shoe body 100 also includes a third knob 8, which is installed on the upper 2. Two adjustment ropes are arranged in the third knob 8. For the convenience of description, the adjustment rope is referred to as adjustment rope three 81. The first ends of the two adjustment ropes three 81 are respectively fixedly connected to the third knob 8, and the second ends of the two adjustment ropes three 81 extend into the upper 2 respectively, and are fixedly connected to the upper 2 corresponding to the mid-waist part, that is, the mid-foot position of the upper 1. The second ends of the two adjustment ropes three 81 are respectively located on the left and right sides of the upper 2, wherein the second ends of the adjustment rope three 81 pass through the accessories fixed to the upper 2, connected to the upper 2, or embedded in the upper 2 to form a whole. For example, the bottom of the upper 2 is integrally connected with two back-to-back rope channels, and the two rope channels are arranged along the circumference of the upper 2. The second ends of the two adjustment ropes three 81 are respectively fixedly connected in the corresponding rope channels.

[0045] In this way, when in use, the third knob 8 is rotated to drive the adjustment rope 3 81 to be tightened synchronously, so that the midfoot and instep of the vamp 2 are wrapped more tightly; the second knob 7 is rotated in the opposite direction to drive the adjustment rope 3 81 to be extended synchronously, so that the midfoot and instep of the vamp 2 are wrapped loosely to adapt to wearers with different instep heights.

[0046] In this embodiment, the shoe body 100 can adjust the bending stiffness of the sole 2 corresponding to the forefoot portion, and can also adjust the wrapping degree of the upper 2 to the midfoot instep c, that is, Figure 7 The c area in the middle meets the needs of the wearer.

[0047] Embodiment 4 In this embodiment, on the basis of the first embodiment, the forefoot wrapping structure described in the second embodiment and the instep wrapping structure described in the third embodiment are additionally provided to realize multiple functions of the shoe body 100 and meet the needs of the wearer, wherein the positions of the first knob, the second knob and the third knob on the upper 2 are arranged according to actual conditions and are not limited to Figure 1 Position shown.

[0048] Embodiment 5 In this embodiment, two elastic wings 6 are added on the basis of the first embodiment. Specifically, the left and right sides of the waist portion of the midsole 12 are respectively connected with elastic wings 6. Specifically, the two elastic wings 6 are in a strip shape, and the first ends of the two elastic wings 6 are fixedly connected to the sides of the waist portion of the midsole 12. The parts of the two elastic wings 6 adjacent to their respective first ends extend upward and twist outward, and the second ends of the two elastic wings 6 are extended backward. At this time, the two elastic wings 6 are respectively arranged on the left and right sides of the heel position of the midsole 12; preferably, the two elastic wings 6 are strips formed of TPU material, and the corresponding midsole 12 is made of TPU board.

[0049] Furthermore, the midsole 12 is made of a TPU plate or a nylon plate.

[0050] In this way, during exercise, when the wearer presses down, since the two elastic wings 6 have buffer space, the two elastic wings 6 elastically deform downward to play a role of shock absorption and support. When the wearer lifts his feet, the two elastic wings 6 rebound, so that the two elastic wings 6 apply an upward thrust to the wearer's feet, making it easier and more comfortable for the wearer to lift his feet.

[0051] The above is only a preferred embodiment of the present embodiment, and all equivalent changes and modifications made within the scope of the claims of the present invention should fall within the scope of the claims of the present invention.

Claims

1. A shoe with adjustable midsole bending stiffness, comprising a shoe body, the shoe body comprising a sole, an upper arranged on the sole, and a first knob installed on the upper, the sole comprising a midsole, the midsole comprising a forefoot portion, a mid-waist portion, and a heel portion; characterized in that: The forefoot part is provided with a wave structure, and the wave structure includes a plurality of wave portions arranged along the width direction of the midsole, and the wave portions are arranged in sequence along the length direction of the midsole, and both ends of each wave portion extend to the edge of the midsole; two adjustment ropes that can be tightened or loosened are provided in the first knob, and one end of the two adjustment ropes are respectively arranged on both sides of the front end of the forefoot part.

2. The shoe with adjustable midsole bending stiffness according to claim 1, characterized in that: Each of the wave portions is an arc-shaped structure that is raised in a direction close to the shoe upper.

3. The shoe with adjustable midsole bending stiffness according to claim 2, characterized in that: The wave portions are arranged continuously along the length direction of the midsole.

4. A shoe with adjustable midsole bending stiffness according to any one of claims 1 to 3, characterized in that: The midsole is provided with a hollow structure at positions corresponding to the forefoot portion and the mid-waist portion, and the hollow structure includes at least one hollow hole, and each of the hollow holes is arranged along the width direction of the midsole.

5. The shoe with adjustable midsole bending stiffness according to claim 4, characterized in that: There are a plurality of hollow holes, each of which is sequentially arranged along the length direction of the midsole, and the length of each of the hollow holes is gradually reduced in a direction away from the forefoot portion.

6. The shoe with adjustable midsole bending stiffness according to claim 5, characterized in that: An opening is provided on the front side of the forepalm part, and a thumb part and four finger parts are provided on the forepalm part through the opening. Locking holes are provided at the front ends of the thumb part and the four finger parts respectively, and one end of the two adjustment ropes are respectively locked in the corresponding locking holes.

7. The shoe with adjustable midsole bending stiffness according to claim 5, characterized in that: Elastic wings are connected to both sides of the middle waist portion, both of which are in strip shape, and the parts of the two elastic wings adjacent to their respective connection positions extend upward and twist respectively, and the other ends of the two elastic wings are respectively extended backward.

8. The shoe with adjustable midsole bending stiffness according to claim 5, characterized in that: The shoe body also includes a second knob, which is installed on the vamp. Two adjustment ropes are arranged in the second knob. One end of the two adjustment ropes extends into the vamp respectively and is fixedly connected to the two sides of the vamp corresponding to the instep of the forefoot.

9. The shoe with adjustable midsole bending stiffness according to claim 5, characterized in that: The shoe body also includes a third knob, which is installed on the vamp. Two adjustment ropes are arranged in the third knob. One end of the two adjustment ropes extends into the vamp respectively and is fixedly connected to the two sides of the vamp corresponding to the midfoot instep.

10. A shoe with adjustable midsole bending stiffness according to any one of claims 1 to 3, characterized in that: The midsole is made of a TPU plate or a nylon plate.

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