An insole for an air-cushioned shoe

Abstract

This invention relates to the field of shoe insole technology, specifically to an insole with an internal height-increasing air cushion, comprising a wedge-shaped height-increasing pad, an air cushion body, and a heel protector. The heel protector is located at the outer edge of the middle-rear side of the air cushion body. The wedge-shaped height-increasing pad is embedded in the connecting groove formed by the air cushion body and the heel protector, and the air cushion body covers the bottom and sides of the middle-rear portion of the wedge-shaped height-increasing pad. The air cushion body includes a horseshoe-shaped air cushion body and a teardrop-shaped air cushion body located in the middle of the horseshoe-shaped air cushion body. The heel protector is located at the outer rear edge of the horseshoe-shaped air cushion body. Compared to traditional height-increasing insoles with air cushions, this invention uses the air cushion body as the load-bearing bottom layer, providing a larger air cushion support space and better cushioning and shock absorption performance, significantly improving the comfort of using internal height-increasing air cushion insoles. Moreover, the air cushion structure of the horseshoe-shaped and teardrop-shaped air cushion bodies provides more stable support, and the combination with the heel protector improves heel stability.

Description

Technical Field

[0001] This invention relates to the field of shoe insole technology, specifically to a height-increasing air cushion shoe insole. Background Technology

[0002] Height-increasing insoles are familiar to most people; they are insoles that increase the perceived height of the wearer by thickening the insole. To improve the comfort of height-increasing insoles, those skilled in the art typically consider embedding an air bladder laterally in the middle of the heel to enhance wearing comfort.

[0003] For example, the patent application CN 203302452 U discloses an invisible air-cushioned semi-support movable height-increasing insole, which relates to the field of height-increasing insole technology. It addresses the shortcomings of existing height-increasing insoles, such as poor comfort and the inability to adjust height as needed. The insole includes a main wedge block for supporting the rear half of the foot, with an air cushion embedded in the heel area. The bottom surface of the main wedge block has an air inlet and outlet hole communicating with the air cushion. A secondary wedge block is also provided at the bottom of the main wedge block, and at least one protruding positioning block is provided on the top surface of the secondary wedge block that is movably connected to the main wedge block. This invisible air-cushioned semi-support movable height-increasing insole enhances overall elasticity and improves comfort. The main and secondary wedge blocks can be freely combined; only the main wedge block can be used, or both the main and secondary wedge blocks can be used in combination, making it convenient and flexible to use.

[0004] For example, the half-height-increasing shoe disclosed in the authorization announcement number CN 204426882 U has an air cushion mounting groove at the heel of the insole body, and an air cushion is bonded in the mounting groove. The presence of an air cushion at the heel of the insole body greatly increases the shock absorption effect of the insole.

[0005] For example, the patent application CN 209862484 U discloses an air-cushioned polyurethane height-increasing insole, comprising a main body made of polyurethane. The top surface of the main body has a curved structure that conforms to the curve of the sole of the foot. A height-increasing air cushion and a support spring are embedded in the heel of the main body. The height-increasing air cushion is arranged in a ring around the outer periphery of the support spring. This invention is a full-foot height-increasing insole, which effectively enhances the rebound comfort of the insole by setting a height-increasing air cushion and a support spring in the heel. Etc.

[0006] However, the air bladders in these height-increasing insoles are all horizontally embedded in the middle area along the heel height. Firstly, because the heel of the insole itself is a wedge-shaped block made of a relatively hard material, and the air bladder is only inserted into a groove in the middle of the wedge, it's clearly ineffective and fails to fully utilize its intended function. Secondly, in this structure, the size of the air bladder is limited by the groove, resulting in small sizes and failing to effectively improve shock absorption and comfort.

[0007] Therefore, it is necessary to develop more comfortable height-increasing insoles to address the above issues. Summary of the Invention

[0008] This invention provides an insole with an internal height-increasing air cushion. Compared with traditional embedded air cushion insoles, the insole with an internal height-increasing air cushion uses an air cushion body as the load-bearing bottom layer, has a larger air cushion support space, has better cushioning and shock absorption performance, and significantly improves the comfort of use.

[0009] The technical solution of the present invention is as follows: an inner height-increasing air cushion insole, comprising a wedge-shaped height-increasing pad, an air cushion body and a heel guard wall, wherein the heel guard wall is disposed at the outer edge of the middle and rear side of the air cushion body, the wedge-shaped height-increasing pad is embedded in the connecting groove formed by the air cushion body and the heel guard wall, and the air cushion body wraps around the bottom and side surfaces of the middle and rear part of the wedge-shaped height-increasing pad.

[0010] The air cushion body includes a horseshoe-shaped air cushion body and a teardrop-shaped air cushion body disposed in the middle of the horseshoe-shaped air cushion body. The heel guard is disposed at the rear outer edge of the horseshoe-shaped air cushion body. The horseshoe-shaped air cushion body, the teardrop-shaped air cushion body and the heel guard together form a connecting recess into which the wedge-shaped height-increasing pad is embedded. The middle and rear part of the wedge-shaped height-increasing pad is embedded in the connecting recess and combined into a whole.

[0011] Preferably, the wedge-shaped heightening pad is thinner at the front end and thicker at the rear end, with its bottom surface conforming to the connecting recess and its upper side surface forming a slope.

[0012] Preferably, the horseshoe-shaped air cushion body and the inner cavity of the teardrop-shaped air cushion body disposed in the middle of the horseshoe-shaped air cushion body are interconnected.

[0013] Preferably, the heel guard covers the outer edge of the middle and rear part of the horseshoe-shaped air cushion body, and its edge extends upward to form a rim that is higher than the wedge-shaped heightening pad. The rim gradually increases in height from the middle part of the horseshoe-shaped air cushion body to its rear part, and forms a raised rim that extends further upward at the rear end.

[0014] Preferably, the heel guard wall has an inwardly tapered waist in the middle, the heel guard wall below the inwardly tapered waist is in the shape of an outwardly convex arc, and the rim above the inwardly tapered waist is an outwardly convex arc extending rim.

[0015] Preferably, the upper surface of the wedge-shaped heightening pad is provided with a face cloth, preferably a mesh cloth.

[0016] Preferably, the wedge-shaped heightening pad is a silicone pad, an EVA pad, a foam pad, or a PU pad.

[0017] Preferably, the air cushion body is a transparent air cushion body.

[0018] Preferably, the air cushion body is a wedge-shaped air cushion body that is divided into a horseshoe-shaped air cushion body and a teardrop-shaped air cushion body with interconnected internal cavities by a teardrop-shaped connecting part that is hot-pressed onto it.

[0019] Preferably, the heel guard is a TPU heel guard, which serves as a protective structure for the heel and has a relatively high hardness.

[0020] The beneficial effects of this invention are as follows: Compared with traditional height-increasing insoles with air cushions, this invention uses an air cushion body as the load-bearing bottom layer and embeds wedge-shaped height-increasing pads on the air cushion body. This invention has a larger air cushion support space, better cushioning and shock absorption performance, and can significantly improve the comfort of using inner height-increasing air cushion insoles; moreover, the air cushion body structure of horseshoe-shaped and teardrop-shaped air cushion bodies can provide more stable support, and the combination with the heel wall can improve the stability of the heel. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the height-increasing air cushion insole in the embodiment.

[0022] Figure 2 This is an exploded view of the structure of the height-increasing air cushion insole in the embodiment.

[0023] Figure 3 This is a schematic diagram of the front view of the air cushion structure in the embodiment.

[0024] In the diagram: 1—Wedge-shaped height-increasing pad, 1.1—Outer fabric, 2—Air cushion body, 2.1—Horseshoe-shaped air cushion body, 2.2—Teardrop-shaped air cushion body, 2.3—Teardrop-shaped connecting part, 3—Heel guard wall, 3.1—Edge, 3.2—Protruding edge, 3.3—Inwardly tapered waist, 3.4—Outwardly convex arc. Detailed Implementation

[0025] To enable those skilled in the art to understand the technical content of this invention, the invention will now be described in detail with reference to the accompanying drawings.

[0026] Reference Appendix Figure 1 To be continued Figure 3 As shown, the height-increasing air cushion insole of the present invention includes a wedge-shaped height-increasing pad 1, an air cushion body 2, and a heel guard 3.

[0027] The wedge-shaped height-increasing pad 1 is a silicone pad or a PU pad. A face fabric 1.1 is provided on the upper surface of the wedge-shaped height-increasing pad 1, preferably a mesh fabric. The wedge-shaped height-increasing pad 1 is thinner at the front end and thicker at the rear end, gradually increasing in thickness from the front to the rear end, and its upper side forms a slope.

[0028] The air cushion body 2 is a transparent air cushion body. The air cushion body 2 is a wedge-shaped air cushion body that is divided into a horseshoe-shaped air cushion body 2.1 and a teardrop-shaped air cushion body 2.2 with interconnected inner cavities by a teardrop-shaped connecting part 2.3 that is heat-pressed onto it. That is, the air cushion body 2 includes a horseshoe-shaped air cushion body 2.1 and a teardrop-shaped air cushion body 2.2 located in the middle of the horseshoe-shaped air cushion body 2.1. The inner cavities of the horseshoe-shaped air cushion body 2.1 and the teardrop-shaped air cushion body 2.2 located in the middle of the horseshoe-shaped air cushion body 2.1 are interconnected, forming a stable and evenly stressed air cushion body.

[0029] The heel guard 3 is located at the rear outer edge of the horseshoe-shaped air cushion 2.1. The horseshoe-shaped air cushion 2.1, the teardrop-shaped air cushion 2.2, and the heel guard 3 together form a connecting recess into which the wedge-shaped height-increasing pad 1 is embedded. The connecting recess is adapted to the middle and rear part of the wedge-shaped height-increasing pad 1. The middle and rear part of the wedge-shaped height-increasing pad 1 is embedded in the connecting recess and combined into a whole.

[0030] The heel protector 3 is a TPU heel protector. The heel protector 3 covers the outer edge of the middle and rear part of the horseshoe-shaped air cushion 2.1, and its edge extends upward to form a rim that is higher than the wedge-shaped height-increasing pad 1. The rim 3.1 gradually increases in height from the middle of the horseshoe-shaped air cushion 2.1 to its rear, and forms a raised rim 3.2 that extends further upward at the rear end.

[0031] The heel guard 3 has an inwardly tapered waist 3.3 in the middle, and the heel guard below the inwardly tapered waist 3.3 is an outwardly convex arc 3.4. The edging 3.1 above the inwardly tapered waist is an outwardly convex arc extending edging.

[0032] When in use, the height-increasing air cushion insole of this invention is placed inside the shoe at the heel to raise and support the heel.

[0033] Compared to traditional height-increasing insoles with air cushions, this invention uses an air cushion as the supporting bottom layer, providing a larger air cushion support space and better cushioning and shock absorption performance, which can significantly improve the comfort of using the height-increasing air cushion insole; moreover, the air cushion structure of the horseshoe-shaped and teardrop-shaped air cushions can provide more stable support, and the combination with the heel guard can improve the stability of the heel.

[0034] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A height-increasing air-cushioned insole, comprising a wedge-shaped height-increasing pad, an air cushion body, and a heel support, characterized in that: The air cushion body includes a horseshoe-shaped air cushion body and a teardrop-shaped air cushion body disposed in the middle of the horseshoe-shaped air cushion body. The inner cavities of the horseshoe-shaped air cushion body and the teardrop-shaped air cushion body disposed in the middle of the horseshoe-shaped air cushion body are interconnected. The air cushion body is a wedge-shaped air cushion body that is divided into a horseshoe-shaped air cushion body and a teardrop-shaped air cushion body with interconnected inner cavities by a teardrop-shaped connecting part that is heat-pressed onto it. The heel guard covers the outer edge of the middle and rear part of the horseshoe-shaped air cushion body, and its edge extends upward to form a higher section than the outer edge of the horseshoe-shaped air cushion body. The wedge-shaped height-increasing pad has an edge that gradually increases in height from the middle of the horseshoe-shaped air cushion to its rear, and forms a raised edge that extends further upward at the rear end. The front end of the wedge-shaped height-increasing pad is thinner, while the rear end is thicker. Its bottom surface is adapted to the connecting recess, while its upper side surface forms a slope. The horseshoe-shaped air cushion, the teardrop-shaped air cushion, and the heel guard together form the connecting recess into which the wedge-shaped height-increasing pad is embedded. The middle and rear parts of the wedge-shaped height-increasing pad are embedded in the connecting recess and combined into a whole.

2. The height-increasing air-cushioned insole according to claim 1, characterized in that: The heel guard wall has an inwardly tapered waist in the middle, and the heel guard wall below the inwardly tapered waist is in the shape of an outwardly convex arc. The edging above the inwardly tapered waist is an outwardly convex arc extending edging.

3. The height-increasing air-cushioned insole according to claim 1, characterized in that: The upper surface of the wedge-shaped heightening pad is covered with a fabric.

4. The height-increasing air-cushioned insole according to claim 1, characterized in that: The wedge-shaped heightening pad is a silicone pad or a PU pad.

5. The height-increasing air-cushioned insole according to claim 1, characterized in that: The heel protector is a TPU heel protector.

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