Heel 5D rear sleeve with external supporting piece
By using a sponge sleeve, inner fabric, outer fabric, TPU support plate, and hidden stitching on the heel cover, the problems of unstable cushioning, poor breathability, and inaccurate support are solved, resulting in a comfortable and safe wearing experience and extended service life.
Patent Information
- Application Number
- CN202520185571.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-06
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2035-02-06
AI Technical Summary
Traditional heel counters have unstable cushioning performance, poor breathability, are prone to bacterial growth, lack precise support, are insufficient in preventing rollover, and the stitching affects aesthetics and is not wear-resistant, resulting in a short service life.
Featuring a sponge sleeve, inner fabric, outer fabric, TPU support plate, support connection, anti-rollover structure, and hidden stitching design, combined with a silicone sole, it forms an ergonomic heel support structure that provides stable support and breathability, prevents rollover, and extends the shoe's lifespan.
It effectively reduces foot vibration and impact, maintains air circulation, prevents bacterial growth, provides precise support, prevents the heel counter from shifting, improves wearing comfort and safety, and extends service life.
Smart Images

Figure CN223627037U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to clothing industry improvement technical field, concretely relates to a heel 5D back cover of external support sheet. BACKGROUND
[0002] In the field of design and manufacture of footwear products, as a key component to ensure comfort, stability and aesthetics, the technical development of heel back cover has always been concerned.
[0003] Traditional heel back cover is mostly combined with simple sponge and single fabric, the forming process of sponge is rough, often with uneven density and irregular shape, leading to unstable buffering performance and affecting wearing experience. The selection of inner and outer fabric is also limited, common fabric has poor air permeability, cannot quickly dissipate moisture after sweating, is prone to bacterial growth and odor, and is not wear-resistant with short service life.
[0004] In terms of structural design, there is a lack of fine consideration of ergonomics, the support part cannot effectively fit the heel and ankle, and cannot provide accurate support force, which can easily cause foot fatigue after long time wearing. At the same time, the anti-rollover design is insufficient, for high-heeled shoes or some special styles of shoes, the ankle rollover risk is high when wearing, which exists safety hazards. In addition, the stitching is mostly ordinary exposed type, which not only affects the appearance, but also causes discomfort due to friction between the stitching and the foot, reducing the overall quality of the product. UTILITY MODEL CONTENTS
[0005] The utility model aims at the defects and deficiencies of prior art, and provides a heel 5D back cover of external support sheet, which can effectively reduce the vibration and impact of the foot during movement, effectively prevent slipping when walking, avoid displacement and sliding of the heel back cover, ensure safety in use, have high practicality, and are suitable for batch production and popularization and use.
[0006] To achieve the above purpose, the utility model adopts the following technical scheme: it contains sponge cover 1, inner layer fabric 2, outer layer fabric 3, TPU support sheet 4, support connecting part 5, anti-rollover structure 6, edge stitching 7 and silica gel bottom pad 8; the inner side of the sponge cover 1 is provided with the inner layer fabric 2, the outer side of the sponge cover 1 is provided with the outer layer fabric 3, the outer surface of the outer layer fabric 3 is provided with the TPU support sheet 4, the connecting position of the TPU support sheet 4 and the outer layer fabric 3 is the support connecting part 5, a plurality of anti-rollover structures 6 are arranged on the outer layer fabric 3 corresponding to the position of the support connecting part 5, the sponge cover 1, the inner layer fabric 2, the outer layer fabric 3 and the TPU support sheet 4 are connected and fixed by the edge stitching 7 to form a heel back cover in accordance with the design of human heel, and the bottom surface of the overall combined structure is fixedly connected with the silica gel bottom pad 8 by hot melt adhesive.
[0007] Further, the sponge cover 1 is a sponge structure in accordance with the design of human heel shape.
[0008] Further, the lining fabric 2 is a mesh fabric layer.
[0009] Further, the outer fabric 3 is a fabric with tiny pinhole-like pores.
[0010] Further, the support connecting part 5 is ergonomically designed in the shape of a human heel.
[0011] Further, the anti-rollover structure 6 is a relatively thick fabric structure that can prevent ankle rollover.
[0012] Further, the edge stitching 7 is a hidden stitching.
[0013] The working principle of the utility model is: the sponge cover 1 is foamed and formed by a mold, and is attached to the shape of a heel, uniformly buffering the impact force when the foot falls or walks, and providing comfortable support; the mesh of the lining fabric 2 helps air circulation, quickly discharges heat and moisture, prevents mildew and bacteria, keeps the inside of the shoe dry, and does not get hot and humid after long wear; the outer fabric 3 has tiny pinholes, can absorb moisture and sweat, and stretch and fit the contour with the foot movement, and feels comfortable; the support connecting part 5 is ergonomically designed, attached to the ankle, and disperses the foot pressure when walking or standing, and reduces fatigue; the anti-rollover structure 6 uses thick fabric to limit ankle deformation, prevents rollover when wearing high-heeled shoes and other unstable center of gravity shoes, and ensures safety; the edge stitching 7 connects the parts in a hidden way, avoids exposure, is not only beautiful but also prevents friction, and improves the wearing experience; the silica gel bottom pad 8 is attached to the bottom by hot melt glue, uses the high friction characteristics of silica gel to prevent slipping and wear, and stabilizes the heel rear cover.
[0014] After the above technical scheme is adopted, the utility model has the beneficial effects that it can effectively reduce the vibration and impact of the foot during movement, keeps the air inside the shoe circulating at all times, effectively avoids the discomfort of the foot caused by bacteria breeding in a hot and humid environment, and disperses the foot pressure precisely, significantly reduces foot fatigue, enables the user to maintain a good state for a long time, the high friction characteristics of the silica gel bottom pad not only effectively prevent slipping when walking, avoid displacement and sliding of the heel rear cover, ensure safety, but also have excellent wear resistance to resist daily wear and tear, greatly prolong the service life of the heel rear cover, and save costs for the user. DRAWINGS
[0015] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating labor intensity.
[0016] Figure 1It is a structure schematic view of the utility model;
[0017] Figure 2 It is a decomposition structure schematic view of the utility model;
[0018] Figure 3 It is the left view corresponding to Figure 1 .
[0019] Mark explanation: sponge cover 1, inner layer fabric 2, outer layer fabric 3, TPU support sheet 4, support connecting portion 5, anti-rollover structure 6, edge stitching 7, silica gel bottom pad 8. Specific implementation
[0020] Referring to Figures 1-3 As shown in the embodiment, the technical scheme adopted by the present embodiment is: it contains sponge cover 1, inner layer fabric 2, outer layer fabric 3, TPU support sheet 4, support connecting portion 5, anti-rollover structure 6, edge stitching 7, silica gel bottom pad 8; The inner side of the sponge cover 1 is provided with the inner layer fabric 2, the outer side of the sponge cover 1 is provided with the outer layer fabric 3, and the outer surface of the outer layer fabric 3 is provided with the TPU support sheet 4, the connecting position of the TPU support sheet 4 and the outer layer fabric 3 is the support connecting portion 5, and a plurality of anti-rollover structures 6 are arranged on the outer layer fabric 3 corresponding to the support connecting portion 5, and the sponge cover 1, the inner layer fabric 2, the outer layer fabric 3, the TPU support sheet 4 are connected and fixed by the edge stitching 7 to form a heel rear cover in line with the design of human heel, and the bottom surface of the overall combined structure is fixedly attached with the silica gel bottom pad 8 by hot melt adhesive.
[0021] Further, the sponge cover 1 is a sponge structure in line with the design of human heel shape, which is directly foamed by industrial mold, has more regular shape and more uniform density, and improves the quality and performance of the sponge cover 1.
[0022] Further, the inner layer fabric 2 is a mesh structure fabric layer, which has good air permeability, mildew resistance, antibacterial property, easy washing and drying, wear resistance, non-pilling and beautiful appearance.
[0023] Further, the outer layer fabric 3 is a fabric with tiny pinhole-like pores, which has good air permeability, brings comfortable wearing experience to the wearer, has strong moisture absorption, can quickly absorb sweat on the skin surface and quickly diffuse it to the outer layer of the fabric to evaporate, keeps the skin dry, and has good elasticity and softness.
[0024] Further, the support connecting portion 5 is in line with the ergonomic design of human heel shape, and can provide comfortable wearing effect for human ankle.
[0025] Further, the anti-rollover structure 6 is a relatively thick fabric structure that can prevent ankle rollover, since the rear cover is placed at the heel, the heel is high, and a thicker fabric is needed at the ankle to form a structure with small deformation.
[0026] Further, the edge stitching 7 is a hidden stitch, which can make the appearance of the heel cover product more neat and beautiful, and the reasonable hidden stitching method usually has good firmness, because the stitching is hidden, there is no discomfort caused by the friction of the stitching during wearing or using.
[0027] In the manufacturing process, first, the sponge cover 1 is directly foamed and formed through an industrial mold, and is accurately shaped according to the shape of the human heel, and the regular shape and uniform density ensure stable buffering effect. When the foot lands or walks, the sponge cover 1 is uniformly pressed, effectively absorbs the impact force, reduces the influence of vibration on the foot, and provides comfortable support for the heel.
[0028] The mesh structure of the inner layer fabric 2 plays a key role in ventilation and mildew prevention. The mesh allows air to flow freely, and the heat and moisture generated by the feet can be quickly discharged, inhibiting the growth of bacteria, keeping the shoes dry and clean, and improving the wearing comfort. Even if you wear it for a long time, you won't feel hot and uncomfortable.
[0029] The tiny pinhole-like pores of the outer layer fabric 3 further enhance the ventilation and moisture absorption function. On the one hand, it can quickly capture the sweat on the surface of the skin, and use the capillary action of the pores to diffuse the sweat to the outer layer of the fabric to evaporate; on the other hand, the good elasticity makes it can stretch and contract freely with the action of the foot, and the soft texture fits the contour of the foot, giving a comfortable touch.
[0030] The support connection part 5 at the joint of the TPU support sheet 4 and the outer layer fabric 3 is ergonomically designed according to the shape of the human heel, and fits the ankle curve. It can provide the right amount of support for the ankle during walking, standing and other actions, distribute the pressure on the foot, reduce the fatigue of the foot, and make wearing more comfortable and relaxed.
[0031] The anti-rollover structure 6 uses thicker fabric, and with its small deformation ability, it provides strong resistance when the ankle tends to roll over. Especially when wearing high-heeled shoes and other unstable shoes, it can effectively resist the rollover force and ensure the safety of the wearer's walking.
[0032] The hidden design of the edge stitching 7 ensures the firm connection of the sponge cover 1, the inner layer fabric 2, the outer layer fabric 3 and the TU support sheet 4, while avoiding the exposure of the stitching. It not only maintains the neat and beautiful appearance of the heel cover, but also eliminates the hidden danger of the stitching contacting and rubbing the foot, and improves the wearing experience in all directions.
[0033] The silicone bottom pad 8 is attached to the bottom by hot melt adhesive, which takes advantage of the high friction characteristics of silicone to increase the friction between the heel cover and the sole, preventing the heel cover from shifting or sliding during walking, ensuring its stable performance, while enhancing the wear resistance of the bottom and prolonging the service life.
[0034] The above merely aims to explain the technical scheme of the present application and is not intended to limit the present application. Other modifications or equivalent replacements made by those skilled in the art to the technical scheme of the present application, as long as they do not depart from the spirit and scope of the present application, should be included in the scope of the claims of the present application.
Claims
1. An external support piece of a heel 5D back cover, characterized by: It contains sponge cover (1), lining fabric (2), outer fabric (3), TPU support sheet (4), support connecting part (5), anti-rollover structure (6), edge stitching (7), silica gel bottom pad (8); The inside of the sponge cover (1) is provided with the lining fabric (2), the outside of the sponge cover (1) is provided with the outer fabric (3), and the outer surface of the outer fabric (3) is provided with the TPU support sheet (4), the connecting position of the TPU support sheet (4) and the outer fabric (3) is the support connecting part (5), and a plurality of anti-rollover structures (6) are provided on the outer fabric (3) corresponding to the position of the support connecting part (5), the sponge cover (1), the lining fabric (2), the outer fabric (3) and the TPU support sheet (4) are connected and fixed by the edge stitching (7) to form a heel back cover in accordance with the design of human heel, and the bottom surface of the overall combined structure is fixed with the silica gel bottom pad (8) by hot melt adhesive.
2. An external heel support piece 5D back sleeve according to claim 1, characterized in that: The sponge cover (1) is a sponge structure in accordance with the design of human heel shape.
3. An external heel support piece 5D back sleeve according to claim 1, characterized in that: The lining fabric (2) is a mesh structure fabric layer.
4. An external support piece of heel 5D back cover according to claim 1, characterized in that: The outer fabric (3) is a fabric with tiny pinhole-like pores.
5. An external support piece of heel 5D back cover according to claim 1, characterized in that: The support connecting part (5) is in accordance with the ergonomic design of human heel shape.
6. An external heel support piece 5D back sleeve according to claim 1, characterized in that: The anti-rollover structure (6) is a relatively thick fabric structure that can prevent ankle rollover.
7. An external heel support piece 5D back sleeve according to claim 1, characterized in that: The edge stitching (7) is a hidden stitching.