Novel paperboard lining

By setting support and lifting parts on the cardboard shoe tree to form a semi-closed toe-shaped structure at the back, the problem of collapse and deformation at the end of the cardboard shoe tree is solved, resulting in a longer service life and a more convenient user experience.

CN224171487UActive Publication Date: 2026-04-28FOSHAN HUAJIN MATERIAL TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FOSHAN HUAJIN MATERIAL TECH CO LTD
Filing Date
2025-03-21
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Existing cardboard shoe trees are prone to collapsing and deforming at the ends, have a short service life, and lack an effective lifting structure, making them inconvenient to use.

Method used

A novel cardboard liner is designed, which forms a semi-closed toe-shaped structure on the back by setting support and lifting parts on the cardboard body. Users can hold the lifting part to insert and remove the shoe support, avoiding collapse and deformation at the end.

Benefits of technology

This increases the lifespan of the shoe trees and enhances their convenience and durability.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224171487U_ABST
    Figure CN224171487U_ABST
Patent Text Reader

Abstract

The utility model discloses a novel paperboard lining which comprises a paperboard body, the paperboard body comprises a supporting part and a lifting part, the lifting part is connected with the rear side of the supporting part, the supporting part and the lifting part are formed in a convergence mode and form a toe cap-shaped structure with the semi-closed rear side, the supporting part is of an arch-shaped structure, and the lifting part is of an arch-shaped structure. The lifting part is formed in a convergence manner and is of an arch-shaped structure; the paperboard body of the novel paperboard lining is provided with the lifting part, the supporting part and the lifting part are in a toe cap-shaped structure with the semi-closed rear side after being converged and formed so as to support a shoe, a user can hold the lifting part by hand to insert and pull a shoe stretcher, the tail end of the shoe stretcher is not prone to collapse and deformation, and then the service life of the shoe stretcher is prolonged.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of shoe support technology, and in particular to a novel cardboard lining. Background Technology

[0002] Shoe trees, also known as shoe linings, are widely used in various types of shoes, such as foam shoe trees and cardboard shoe trees. Cardboard shoe trees are usually made of cardboard or corrugated paper and are mainly used for shoe packaging, transportation, or storage to prevent shoes from deforming, collapsing, or wrinkling. Existing cardboard shoe trees have an open back structure after molding, and there is no corresponding lifting structure on the back of the shoe tree. This means that users can only hold the end of the shoe tree and insert it into the shoe. As a result, the end of the shoe tree is prone to collapse and deformation and needs to be replaced, which leads to a short service life of the shoe tree. Therefore, it is necessary to design a new type of cardboard shoe tree structure to solve the above problems. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a novel cardboard liner with a lifting part. After the supporting part and the lifting part are converged and formed, they form a semi-closed shoe toe-shaped structure to support the shoe. The user can hold the lifting part to insert and remove the shoe support, which makes it less likely for the end of the shoe support to collapse and deform, thereby improving the service life of the shoe support.

[0004] A novel cardboard liner includes a cardboard body comprising a support portion and a lifting portion, wherein the lifting portion is connected to the rear side of the support portion, and the support portion and the lifting portion converge to form a semi-closed shoe toe-shaped structure on the rear side.

[0005] Preferably, the support portion has an arched structure, and the lifting portion is tapered and also has an arched structure.

[0006] Preferably, the left and right sides of the support portion are provided with inwardly inclined gaps, and the gaps are converged and suspended, and the rear middle of the lifting portion is provided with a first forming opening for convergence.

[0007] Preferably, the rear side of the lifting part is provided with a second forming opening for convergence and shaping, and the rear side of the lifting part is symmetrically provided with two arc-shaped recesses connected to the second forming opening, with the second forming opening as the center, and the two arc-shaped recesses converge and shape to form an arched lifting opening extending to the bottom surface of the shoe support.

[0008] Preferably, the middle part of the lifting part is provided with a third forming opening for convergence and shaping, and the left and right sides of the third forming opening are provided with arc notches, and the two arc notches converge and shape to form a circular lifting opening.

[0009] The beneficial effects of this utility model are: the new cardboard liner has a support part and a lifting part that cooperate with each other, so that the cardboard body is provided with a lifting part. After the support part and the lifting part are converged and formed, they form a shoe toe-shaped structure with a semi-closed rear side to support the shoe. In addition, the user can hold the lifting part to insert and remove the shoe support, which makes it less likely for the end of the shoe support to collapse and deform, thereby improving the service life of the shoe support. Attached Figure Description

[0010] Appendix Figure 1 This is an unfolded view of the first embodiment of the cardboard body of this utility model;

[0011] Appendix Figure 2 This is a three-dimensional molding diagram of the first embodiment of the cardboard body of this utility model;

[0012] Appendix Figure 3 This is an unfolded view of the second embodiment of the cardboard body of this utility model;

[0013] Appendix Figure 4 This is a three-dimensional molding diagram of the second embodiment of the cardboard body of this utility model;

[0014] Appendix Figure 5 This is a unfolded view of the third embodiment of the cardboard body of this utility model;

[0015] Appendix Figure 6 This is a three-dimensional molding diagram of the third embodiment of the cardboard body of this utility model.

[0016] In the diagram: 1 Support section, 2 Lifting section, 3 Drop section, 4 First forming opening, 5 Second forming opening, 6 Arc-shaped notch, 7 Arched lifting opening, 8 Third forming opening, 9 Arc-shaped notch, 10 Circular lifting opening. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so as to provide a clearer understanding of the technical concept claimed by the present invention.

[0018] like Figures 1 to 6 As shown, a novel cardboard liner includes a cardboard body, which includes a support portion 1 and a lifting portion 2. The lifting portion 2 is connected to the rear side of the support portion 1, and the support portion 1 and the lifting portion 2 converge to form a semi-closed shoe toe-shaped structure at the rear.

[0019] The working principle of the novel cardboard liner described in this utility model is achieved through the cooperation of the support part 1 and the lifting part 2, such as... Figures 1 to 6As shown, the cardboard body is provided with a lifting part 2. The cardboard body is formed into a shoe support through a hot pressing process. After the supporting part 1 and the lifting part 2 of the cardboard body are converged and formed, they form a semi-closed shoe toe-shaped structure to support the shoe and make the rear of the shoe support a closed structure. This makes it easy for the user to hold the lifting part 2 to insert and remove the shoe support. Compared with traditional shoe linings, this new cardboard lining is less likely to cause the end of the shoe support to collapse and deform when the shoe support is inserted and removed by the lifting part 2, which can improve the service life of the shoe support.

[0020] Specifically, the support part 1 has an arched structure, and the lifting part 2 is also arched, so that the support part 1 and the lifting part 2 are formed into a semi-closed shoe-toe structure at the rear. In the first embodiment of the cardboard body, the left and right edges of the support part 1 are provided with inwardly inclined gaps 3, and the gaps 3 are formed and suspended. The middle of the rear side of the lifting part 2 is provided with a first forming opening 4 for forming the gaps. Figures 1 to 2 As shown, when the lifting part 2 is folded down and the first forming opening 4 is closed, the empty part 3 can leave a gap between the lifting part 2 and the bottom surface of the shoe support, so that the user's fingers can be inserted into the gap and the lifting part 2 can be held. This makes it easy for the user to hold the lifting part 2 to insert and remove the shoe support.

[0021] In the second embodiment of the cardboard body, a second forming opening 5 for convergence forming is provided at the center of the rear side of the lifting part 2. Two arc-shaped recesses 6 connected to the second forming opening 5 are symmetrically arranged on the rear side of the lifting part 2 with the second forming opening 5 as the center. The two arc-shaped recesses 6 converge to form an arched lifting opening 7 extending to the bottom surface of the shoe support. Figures 3 to 4 As shown, when the lifting part 2 is folded down and the second forming opening 5 is closed, the two arc-shaped notches 6 cooperate to form an arched lifting opening 7 that extends to the bottom of the shoe support. At this time, there is no gap between the lifting part 2 and the bottom of the shoe support. The user inserts his / her fingers into the arched lifting opening 7 and holds the lifting part 2, which makes it easy for the user to hold the lifting part 2 to insert and remove the shoe support.

[0022] In the third embodiment of the cardboard body, a third forming opening 8 for convergence forming is provided in the middle of the lifting part 2, and arc notches 9 are provided on the left and right sides of the third forming opening 8. The two arc notches converge to form a circular lifting opening 10, as shown. Figures 5 to 6 As shown, when the lifting part 2 is folded down and the third forming opening 8 is closed, the two arc notches 9 cooperate to form a circular lifting opening 10. At this time, there is no gap between the lifting part 2 and the bottom surface of the shoe support. The user inserts his / her fingers into the circular lifting opening 10 and holds the lifting part 2, which makes it easy for the user to hold the lifting part 2 to insert and remove the shoe support.

[0023] The above are merely specific embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A novel cardboard liner, characterized in that: The device includes a cardboard body, which includes a support portion and a lifting portion. The lifting portion is connected to the rear side of the support portion, and the support portion and the lifting portion converge to form a semi-closed shoe toe-shaped structure on the rear side. The left and right sides of the support portion are provided with inwardly inclined drop-out portions, and the drop-out portions converge to form and are suspended in the air.

2. The novel cardboard liner according to claim 1, characterized in that: The support part has an arch-shaped structure, and the lifting part is converged and formed into an arch-shaped structure.

3. The novel cardboard liner according to claim 1, characterized in that: The rear center of the lifting section is provided with a first forming opening for convergence and shaping.

4. The novel cardboard liner according to claim 1, characterized in that: The rear side of the lifting part is provided with a second forming opening for convergence and shaping. The rear side of the lifting part is symmetrically provided with two arc-shaped recesses connected to the second forming opening, and the two arc-shaped recesses converge and shape to form an arched lifting opening extending to the bottom of the shoe support.

5. The novel cardboard liner according to claim 1, characterized in that: The lifting part has a third forming opening in the middle for converging and forming. The left and right sides of the third forming opening have arc notches, and the two arc notches converge and form a circular lifting opening.