Three-dimensional filling insole

By using a three-dimensional filled insole design, combining a lower pad, an upper pad, and a fabric covering, along with foam filling, the problems of edge turning, support, and processing efficiency of traditional insoles are solved, achieving a product that is easy to process, comfortable, and durable.

CN223873384UActive Publication Date: 2026-02-06HUNAN ZHONGCEN NEW MATERIAL TECH CO LTD
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Patent Information

Application Number
CN202423087456.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-13
Publication Date
2026-02-06
Estimated Expiration
2034-12-13

AI Technical Summary

Technical Problem

Traditional insoles are prone to problems during use, such as side edge curling, dirt accumulation, reduced support, low processing efficiency, and high cost, especially due to defects in needle and thread sewing and top and bottom gluing methods.

Method used

It adopts a three-dimensional filling structure, which combines a lower pad, an upper pad, and a cover, and is fixed by glue and heat pressing to form a seamless edge structure. The upper pad has a filling groove for injecting foam filler. The thickness of the heel area is greater than that of the forefoot area. The foam filler material is EVA or TPU, and the cover is composed of elastic leather and elastic mesh layers.

Benefits of technology

It achieves a simple and easy-to-process structure with good ergonomics, avoids edge flipping, improves support and wearing comfort, and reduces manufacturing costs.

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Abstract

The utility model discloses a three-dimensional filling insole which comprises a lower insole, an upper insole and covering cloth, the upper insole is fixed on the upper end face of the lower insole, the covering cloth covers the side edges of the upper insole, the lower insole and the upper insole and the edge area of the bottom of the lower insole from top to bottom, and the covering cloth is fixed on the outer sides of the lower insole and the upper insole in a glue and hot pressing mode. A plurality of areas of filling grooves are formed in the top and the inner side of the upper cushion body, the filling grooves are filled with foaming filler, the upper cushion body and the lower cushion body are placed on the inner face of covering cloth coated with glue, the edge of the covering cloth is turned up and attached to the edge area of the lower cushion body, and then fixation is completed in a hot pressing or physical pressing mode. According to the insole manufacturing method, a seamless edge covering structure is formed on the insole, then foaming filler is injected into the filling grooves in a quantitative injection mode, and then the filler is simply pressed and shaped, so that manufacturing of the insole can be completed. The rigid support of the upper pad and the lower pad is matched with the foaming filler with good elastic support, so that the insole has better wearing comfort and protection performance.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of insoles, in particular to a three-dimensional filling insole. BACKGROUND

[0002] An insole is a pad used to be placed inside a shoe, and its main functions are to increase comfort, prevent sweating, prevent cold and increase height. The insole is usually made of cloth, leather, silicone and tpu materials, and the selection of these materials can be adjusted according to different needs.

[0003] At present, the traditional insole is generally a multi-layer sandwich structure, and the side end edge of the insole is mainly made by needle sewing and upper and lower pasting according to different processes. However, there are some problems in actual use, such as the insole made by needle sewing mainly includes edge sewing and edge covering structure, the edge sewing is often prone to side end turning over in use, and is easy to hide dirt and reduce the side support of the insole; the edge covering structure is mainly made by manual sewing, which has low processing efficiency and high cost; and the upper and lower pasting is easy to cause the mesh cloth layer to be delaminated and separated due to side friction in use. Therefore, the technical personnel in the field provide a three-dimensional filling insole to solve the above problems. SUMMARY

[0004] This part aims to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part and the abstract of the specification and the utility model name to avoid obscuring the purpose of this part, the abstract of the specification and the utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] Therefore, the purpose of the utility model is to provide a three-dimensional filling insole to solve the problems of the existing insole in the background art, such as the edge sewing is often prone to side end turning over in use, easy to hide dirt and reduce the side support of the insole; the edge covering structure is relatively complicated in processing and has high manufacturing cost; and the upper and lower pasting is easy to cause the mesh cloth layer to be delaminated and separated due to side friction in use.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a three-dimensional filling insole, comprising a lower pad, an upper pad and a cloth cover, the upper pad is fixed on the upper end face of the lower pad, the cloth cover is covered from top to bottom on the upper pad, the lower pad and the side edge of the upper pad, and the bottom edge area of the lower pad, and the cloth cover is fixed on the outside of the lower pad and the upper pad by means of glue and hot pressing, the top and inside of the upper pad have a plurality of area filling grooves, and the filling grooves are filled with foaming filler.

[0007] As a preferred scheme of the three-dimensional filling insole, the filling groove is divided into a forefoot region and a hindfoot region, and the thickness of the foamed filling in the hindfoot region is greater than the thickness of the foamed filling in the forefoot region.

[0008] As a preferred scheme of the three-dimensional filling insole, the material of the foamed filling can be EVA material or TPU material.

[0009] As a preferred scheme of the three-dimensional filling insole, the cover cloth comprises an elastic leather and an elastic mesh cloth layer located outside the elastic leather, and the elastic mesh cloth layer and the elastic leather are connected by glue.

[0010] As a preferred scheme of the three-dimensional filling insole, the foamed filling is filled into the filling groove in the form of injection.

[0011] As a preferred scheme of the three-dimensional filling insole, the top surface height of the foamed filling after filling and leveling is higher than the top surface height of the upper insole.

[0012] Compared with the prior art, the three-dimensional filling insole has the advantages of simple structure, easy processing, good ergonomics, and no edge turning, and is suitable for popularization and application. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a schematic view of the insole body structure of the utility model;

[0014] Figure 2 is a schematic view of the upper structure of the insole of the utility model;

[0015] Figure 3 is a schematic view of the bottom structure of the insole of the utility model;

[0016] Figure 4 is a schematic view of the cross-sectional structure of the cover cloth of the utility model.

[0017] In the drawing: 100, lower insole; 200, upper insole; 210, filling groove; 300, cover cloth; 310, elastic leather; 320, elastic mesh cloth layer. DETAILED DESCRIPTION

[0018] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific embodiments of the utility model are described in detail below with reference to the drawings.

[0019] Second, the utility model in combination with the schematic diagram is described in detail, in the detailed description of the utility model embodiment, for the convenience of explanation, the sectional view of the device structure will be partially enlarged without the general proportion, and the schematic diagram is only an example, which should not limit the scope of the utility model protection here. In addition, the three-dimensional spatial dimensions of length, width and depth should be included in actual production.

[0020] In order to make the purpose, technical scheme and advantage of the utility model more clear, the embodiments of the utility model will be described in further detail below with reference to the drawings.

[0021] Figures 1-4 The whole structure schematic diagram of the utility model is shown, please refer to Figures 1-4 The utility model discloses a kind of three-dimensional filling insole, including lower pad 100, upper pad 200 and cover cloth 300, upper pad 200 is fixed on the upper end surface of lower pad 100, cover cloth 300 is covered from top to bottom in upper pad 200, lower pad 100 and upper pad 200 side edge, and lower pad 100 bottom edge area, and cover cloth 300 is fixed on the outside of lower pad 100 and upper pad 200 by means of glue and hot pressing, upper pad 200 top and inside have multiple area filling groove 210, and filling groove 210 is filled with foamed filling.

[0022] Filling groove 210 is divided into forefoot region and rearfoot region, and the thickness of foamed filling in rearfoot region is greater than the thickness of foamed filling in forefoot region.It can be understood that, since the thickness of rearfoot region is greater than the thickness of forefoot region, the design of independent filling groove 210 in front and back makes the front and back amount more easily controlled when foamed filling is injected, and it is also convenient to press and flatten after filling.It needs to be noted that the filling thickness of rearfoot region is large, so that the insole can provide better cushioning for the heel when standing, in line with ergonomics.In particular, in the embodiment, by placing the upper and lower pad body in the inner surface of cover cloth 300 coated with glue, the edge of cover cloth 300 is turned up and attached to the edge area of lower pad 100, and then fixed by hot pressing or physical pressing, so that the insole forms a seamless edge structure, and then the foamed filling is injected into filling groove 210 by quantitative injection, and the insole is completed by simply pressing and shaping the filling.The rigid support of upper and lower pad, combined with the foamed filling with good elastic support, makes the insole have better wearing comfort and protection.In summary, the three-dimensional filling insole has the characteristics of simple structure, easy processing, good ergonomics and no edge turning, and is suitable for popularization and application.

[0023] As preferred, further, the material of the foaming filler can adopt EVA material or TPU material; it is to be understood that both EVA and TPU materials have high elasticity and tensile force, good shock resistance and buffering performance, and have various properties such as durability and non-pollution, which are suitable for use as the filler of the insole in the embodiment.

[0024] As preferred, further, the cover 300 comprises the elastic leather 310 and the elastic mesh cloth layer 320 located on the outer layer of the elastic leather 310, and the elastic mesh cloth layer 320 and the elastic leather 310 are connected by glue. It can be understood that the use of the elastic leather 310 can increase the contact bonding area of the cover 300 with the upper and lower insole bodies and has better hot pressing effect, and the use of the elastic mesh cloth layer 320 on the outside can increase the air permeability of the insole and improve the wearing comfort.

[0025] As preferred, further, the foaming filler is filled into the filling groove 210 by injection. In actual processing, the needle tube penetrates the cover 300, the foaming filler is injected into the filling groove 210 by quantitative injection, and after completion, it can be directly pulled out, which is simple and effective; it should be noted that since the foaming filler is in an irregular shape after injection and filling, it needs to be simply pressed and shaped after injection to make it into a fixed shape.

[0026] As preferred, further, the top surface height of the foaming filler after filling and leveling is higher than the top surface height of the upper insole 200. The purpose of this is to fully exert the elastic supporting effect of the insole and prevent the upper insole 200 and the edge of the filling groove 210 from rubbing the sole.

[0027] Although the utility model has been described above with reference to the embodiments, various improvements can be made and equivalent parts can be replaced without departing from the scope of the utility model. In particular, as long as there is no structural conflict, the features in the embodiments disclosed by the utility model can be combined in any way, and the combinations are not described in this specification due to the consideration of omitting the length and saving resources. Therefore, the utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A three-dimensional filling insole, characterized by, The invention relates to a shoe, comprising a bottom pad (100), a top pad (200) fixed to the upper end surface of the bottom pad (100), and a cover (300) covering the top pad (200), the bottom pad (100) and the side edges of the top pad (200) and the bottom pad (100) from top to bottom, and the cover (300) being fixed to the outside of the bottom pad (100) and the top pad (200) by means of glue and hot pressing, the top pad (200) having a plurality of filling grooves (210) in the top and inner side of the top pad (200), and the filling grooves (210) being filled with foamed filling material.

2. A three-dimensional filling insole according to claim 1, characterized in that: The filling grooves (210) are divided into a forefoot region and a hindfoot region, and the thickness of the foamed filling material in the hindfoot region is greater than that in the forefoot region.

3. The three-dimensional filling insole according to claim 1, wherein: The foamed filling material can be made of EVA or TPU.

4. The three-dimensional filling insole according to claim 1, wherein: The cover (300) comprises an elastic leather (310) and an elastic mesh cloth layer (320) on the outer layer of the elastic leather (310), and the elastic mesh cloth layer (320) and the elastic leather (310) are connected by glue.

5. The three-dimensional filling insole according to claim 1, wherein: The foamed filling material is injected into the filling grooves (210) by injection.

6. The three-dimensional filling insole according to claim 1, wherein: The height of the top surface of the foamed filling material after filling and leveling is higher than the height of the top surface of the top pad (200).