File folder formed by combining injection molding back ridge and PP foaming sheet
The folder design, which combines injection-molded spine with PP foam sheet, solves the problems of poor feel and heavy weight of existing folder panels, achieving cost reduction and diversified appearance.
Patent Information
- Application Number
- CN202520512594.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-03-21
AI Technical Summary
Existing folders have poor surface feel, are heavy, and are costly.
The folder design uses a combination of injection-molded spine and PP foam sheet, including a PP foam sheet panel and an injection-molded spine, which are connected by a riveting structure. The injection-molded spine is equipped with a handle hole, label pocket and decorative groove.
It improves the appearance of the folder, reduces costs, and features a sturdy and durable injection-molded spine, lightweight and comfortable PP foam material, and a variety of textures.
Smart Images
Figure CN223657885U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of folder technology, specifically to a folder formed by combining an injection-molded spine with PP foam sheet. Background Technology
[0002] A folder is a clip specifically designed to hold files or documents. In existing technology, the spine and panel of a folder are entirely formed using injection molding. This results in a poor surface feel on the panel, increased weight, and relatively high cost. Summary of the Invention
[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a folder formed by combining an injection-molded spine with PP foam sheet.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A folder made of injection-molded spine and PP foam sheet includes two panels made of PP foam sheet and an injection-molded spine. The injection-molded spine includes a back plate. The two sides of the back plate are connected by integrally formed connecting plates through folds. The sides of the two connecting plates are respectively connected to the corresponding panels by riveting structures. One of the connecting plates has a metal hole clip for holding documents on its inner side.
[0006] Furthermore, the riveting structure includes a plurality of riveting posts placed on the connecting plate and engagement holes located on the panel that mate with each riveting post.
[0007] Furthermore, the injection-molded spine has a handle hole on its back plate, and the handle hole is surrounded by a flange with an arc-shaped surface.
[0008] Furthermore, a label bag is provided on the back of the injection-molded spine.
[0009] Furthermore, the back plate of the injection-molded spine is provided with decorative grooves.
[0010] The present invention adopts the above technical solution and has the following beneficial effects:
[0011] 1. The folder adopts a split structure, combining the advantages of injection molding and PP foam sheet, which can not only improve the appearance of the folder, but also reduce the overall cost of the folder due to the relatively low cost of PP foam sheet.
[0012] 2. The spine of the folder is injection molded, and different shaped grooves can be formed on the spine according to the needs. It is sturdy and durable. PP foam sheet is used as the panel, which is lightweight and has a good feel. At the same time, various textured PP foam panels can be provided according to different market demands. Attached Figure Description
[0013] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:
[0014] Figure 1 This is a schematic diagram of the (disassembled) structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the injection-molded spine unfolding. Detailed Implementation
[0016] like Figure 1-2 As shown, this utility model discloses a folder formed by combining an injection-molded spine and PP foam sheet, including two panels 1 formed from PP foam sheet and an injection-molded spine 2. The injection-molded spine 2 includes a back plate 21, and the two sides of the back plate 21 are connected by folds to integrally formed connecting plates 22. The sides of the two connecting plates 22 are respectively connected to the corresponding panels 1 by riveting structures. One of the connecting plates 22 has a metal hole clip 3 for holding documents on its inner side.
[0017] The riveting structure includes a plurality of riveting posts 221 placed on the connecting plate 22 and a mating hole 11 located on the panel 1 that mates with each riveting post 221.
[0018] The injection-molded spine 2 has a handle hole 211 on the back plate 21. The handle hole 211 has a flange with an arc-shaped surface around its edge, which can prevent cuts to the hand and improve the comfort of carrying.
[0019] The back panel 21 of the injection-molded spine 2 has a label pocket 212 on the back side for easy identification of folder information.
[0020] The injection-molded spine 2 has a decorative groove 213 on its back plate 21. The decorative groove 213 can improve the aesthetics of the injection-molded spine 2, and at the same time improve the strength and durability of the injection-molded spine 2.
[0021] This utility model's folder adopts a split structure, combining the advantages of injection molding and PP foam sheet. This not only improves the folder's visual appeal but also reduces the overall cost of the folder due to the relatively low cost of PP foam sheet. The folder's spine is injection molded, allowing for the creation of different shaped grooves as needed, resulting in a sturdy and durable design. Using PP foam sheet as the panel provides lightweight construction, diverse design options for textures, and a pleasant feel, meeting various market demands.
[0022] The specific embodiments of this utility model have been described above. However, those skilled in the art should understand that this is only an example. Those skilled in the art can make various changes or modifications to this embodiment without departing from the principle and essence of this utility model, but all such changes and modifications fall within the protection scope of this utility model.
Claims
1. A file folder molded in combination with an injection molded spine and a PP foamed sheet, characterized by: The invention relates to a file folder comprising two panels formed by PP foamed sheet and an injection-molded back ridge, the back ridge comprising a back plate, two sides of the back plate being connected with integral connecting plates through creases, side edges of the two connecting plates being connected with corresponding panels through riveting structures respectively, and the inner side of one of the connecting plates being provided with a metal hole clamp for clamping files.
2. The file folder of claim 1 wherein: the back spine is integrally formed with the PP foamed sheet material. The riveting structure comprises a plurality of riveting columns arranged on the connecting plate and engaging holes on the panel corresponding to the riveting columns.
3. The file folder of claim 1 wherein: the back spine is integrally formed with the PP foamed sheet material. The back plate of the injection-molded back ridge is provided with a handle hole, and the hole edge of the handle hole is provided with a flange with an arc-shaped surface.
4. The file folder of claim 1 wherein: the back spine is integrally formed with the PP foamed sheet material. The back plate of the injection-molded back ridge is provided with a label pocket.
5. The file folder of claim 1 wherein: the back spine is integrally formed with the PP foamed sheet material. 5 The back plate of the injection-molded back ridge is provided with a decorative groove.