A loose-leaf notebook
Patent Information
- Application Number
- CN202522784252.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-29
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-29
AI Technical Summary
Existing loose-leaf notebooks are prone to deformation at the back width, take up a lot of space, and have low functional integration, lacking convenient pen storage solutions.
The cover is connected using a flexible back-wide structure, and a strip window is set on the top cover to accommodate the binder ring, forming an arc structure, leaving space for inserting writing pens or other stationery, and the cover is connected by stitching, ultrasonic welding or adhesive.
The deformation problem at the back width has been solved, the overall thickness has been reduced, convenient pen storage space has been provided, and the user experience and structural stability have been improved.
Smart Images

Figure CN224928735U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stationery technology, and in particular to a loose-leaf notebook. Background Technology
[0002] Loose-leaf notebooks, as a common stationery item, are widely popular due to the flexibility of their pages being easily disassembled, replaced, and combined. Existing loose-leaf notebooks typically consist of a cover, a binder (or spiral binder), and paper, with the binder primarily located on the back of the notebook for binding. However, this traditional structure has significant drawbacks in practical transportation, use, and functional integration. Specifically, it has the following shortcomings: 1. Structural Strength and Deformation Issues in the Back Wide Area: The covers of existing loose-leaf notebooks are often made of plastic sheets. When multiple notebooks are stacked and transported, the binder clips at the back wide area become the main stress point, easily causing compression deformation of the plastic cover. This deformation not only affects the notebook's appearance but also compromises its structural stability. During use, because the binder clips themselves have a certain thickness and are fixed at the back wide area, the notebook's back wide area maintains a fixed, incompressible thickness. This means that when the notebook is closed for storage, it cannot be compressed to reduce its overall thickness, occupying excessive storage space. Furthermore, long-term use or external pressure can exacerbate existing deformation defects in the back wide area or cause new deformation due to stress concentration, affecting service life and user experience. 2. Limited Functionality and Lack of Pen Storage Space: Traditional loose-leaf notebooks are primarily designed for binding paper, with the back width completely occupied by the binder structure, failing to effectively integrate multiple functions. Therefore, most products on the market today do not have dedicated space on the back width for storing pens. Users must carry the pen separately, posing a risk of forgetting it, and failing to meet users' needs for integrated, portable stationery solutions. While some designs attempt to combine functions, such as using separate pen cases or elastic cords, these solutions often fail to efficiently utilize the back width or achieve a compact, stable, integrated design with the notebook structure, leaving practicality and convenience to be improved.
[0003] In conclusion, existing loose-leaf notebooks have significant drawbacks in their wide-back design, including easy deformation, large space occupation, low functional integration, and lack of convenient pen storage solutions, which urgently need improvement. Utility Model Content
[0004] The technical problem to be solved by this utility model embodiment is to provide a loose-leaf notebook that can overcome the shortcomings of the prior art.
[0005] To address the aforementioned technical problems, this utility model provides a loose-leaf notebook, comprising a bottom cover, a top cover, a flexible back cover, and a loose-leaf clip. The flexible back cover connects the sides of the bottom cover and the top cover to form a foldable cover structure. The loose-leaf clip is fixedly disposed on the bottom cover on the side adjacent to the flexible back cover. The top cover has several strip windows for the clip ring of the loose-leaf clip to pass through when the top cover is folded onto the bottom cover. The flexible back cover forms an arc-shaped structure when the top cover is folded onto the bottom cover, and there is a gap between the arc-shaped structure and the loose-leaf clip.
[0006] As a further preferred embodiment of this utility model, the number of the strip windows is set according to the number and position of the clamping rings of the hinge fixture.
[0007] As a further preferred embodiment of this utility model, the base plate of the loose-leaf clamp and the bottom cover are fixedly connected by rivets.
[0008] As a further preferred embodiment of this utility model, the flexible back cover is connected to the bottom cover and the top cover by stitching, ultrasonic welding or adhesive.
[0009] As a further preferred embodiment of this utility model, the inner surface of the flexible back is further connected to at least one clip.
[0010] As a further preferred embodiment of this utility model, the clip is the same width as the flexible back width, and its two sides are fixedly connected to the flexible back width.
[0011] As a further preferred embodiment of this utility model, the clip is used to insert a pen clip.
[0012] As a further preferred embodiment of this utility model, a bag piece is fixedly connected to the bottom inner surface of the flexible back panel, and the two sides and bottom edge of the bag piece are fixedly connected to the flexible back panel.
[0013] Implementing this utility model embodiment has the following beneficial effects: By connecting a flexible back width between the bottom cover and the top cover, and opening a strip window on the top cover for the looper clip to pass through, the overall thickness of this utility model is controllable. Furthermore, due to the flexible nature of the back width, it will not be crushed during use and can maintain its proper shape. The space formed in the flexible back width can also be used to build a writing pen, thus having good practicality. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the unfolded structure of this utility model; Figure 2This is a perspective diagram showing the top cover overlapping the bottom cover. Figure 3 This is a schematic diagram of the structure where the top cover fits onto the bottom cover; Figure 4 This is a diagram showing the top cover fitting over the bottom cover, viewed from below. Figure 5 This is a schematic diagram of another embodiment of the present invention. Detailed Implementation
[0015] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.
[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention. The present invention will be described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer from the following description and claims. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.
[0017] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0019] Reference Figures 1 to 4 The diagram shown is a structural schematic.
[0020] The loose-leaf notebook provided in this embodiment includes a bottom cover 1, a top cover 2, a flexible back width 3, and a loose-leaf clip 4. The flexible back width 3 is used to connect the sides of the bottom cover 1 and the top cover 2, so that the top cover 2 forms a cover structure that can be flipped 360 degrees. The loose-leaf clip 4 is fixedly set on the side of the bottom cover adjacent to the flexible back width for binding loose-leaf pages.
[0021] Through the connecting effect of the flexible back width 3 and the setting position of the hinge clip 4, the back width part of this utility model can be flexibly flipped, and the defects of pressure damage caused by support encountered in the prior art are avoided.
[0022] The flexible back cover 3 can be made of materials such as leather or silicone. In this embodiment, leather is selected and it is connected to the bottom cover 1 and the top cover 2 by means of stitching 3a. When other materials are selected for the flexible back cover 3, ultrasonic welding or adhesive can be used for connection according to the material requirements.
[0023] like Figure 2 , Figure 3 As shown, this embodiment also provides several strip windows 21 on the top cover 2 so that when it is folded onto the bottom cover, the clamping ring of the loose-leaf clip 4 can pass through the top cover 2, so that there is no space for movement between the cover and the inner loose-leaf pages, forming a solid whole for the overall structure, so as to better cope with the problem of support force and make it easier to grasp.
[0024] In the above, the number of strip windows 21 is set according to the number and position of the clamping rings 41 of the binder 4. The binder 4 can be selected with 4 holes, 7 holes, etc., and this embodiment is not limited to this. The binder 4 can be a binder that can be riveted to the bottom cover 1 using the existing technology.
[0025] In this embodiment, the flexible back cover 3 forms an arc-shaped structure when the top cover 2 is folded onto the bottom cover 1. Due to its flexible characteristics, the top cover 2 can be folded onto the bottom cover 1 in either the forward or reverse direction.
[0026] like Figure 4 As shown, during the folding process, the flexible back width 3 forms an arc-shaped structure 31, and an interval space 32 is formed between the arc-shaped structure 31 and the hinge clamp 4.
[0027] Based on the above, at least one clip 5 is connected to the inner surface of the flexible back width 3. The clip 5 is the same width as the flexible back width 3, and its two sides are connected to the flexible back width by stitches. In this way, a gap is formed between the clip 5 and the flexible back width 3, which can be used to insert a pen clip.
[0028] When the pen clip is inserted, the pen is positioned in the space 32 when the top cover 2 is folded onto the bottom cover 1, making efficient use of the back space. The pen provides a good grip and is also easier to hold due to its curved shape.
[0029] In another embodiment of this application, such as Figure 5 As shown, based on the above embodiment, a bag piece 6 can also be fixedly connected to the bottom of the flexible back width 3. The two sides and the bottom edge of the bag piece are fixedly connected to the flexible back width 3 by stitching to form an insert pocket with an upper opening for inserting other stationery.
[0030] Clip 5 and bag 6 are made of the same material as flexible back width 3.
[0031] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.
Claims
1. A loose-leaf notebook, characterized in that, The device includes a bottom cover, a top cover, a flexible spine, and a binder. The flexible spine connects the sides of the bottom cover and the top cover to form a foldable cover structure. The binder is fixedly mounted on the bottom cover on the side adjacent to the flexible spine. The top cover has several strip windows for the binder's clips to pass through when the top cover is folded onto the bottom cover. The flexible spine forms an arc-shaped structure when the top cover is folded onto the bottom cover, and there is a gap between the arc-shaped structure and the binder.
2. A loose-leaf notebook according to claim 1, characterized in that, The number of strip windows is determined based on the number and position of the clamps in the hinge fixture.
3. A loose-leaf notebook according to claim 1, characterized in that, The base plate of the hinge fixture and the cover plate are fixedly connected by rivets.
4. A loose-leaf notebook according to claim 1, characterized in that, The flexible back cover is connected to the bottom cover and the top cover by stitching, ultrasonic welding or adhesive.
5. A loose-leaf notebook according to any one of claims 1-4, characterized in that, The inner surface of the flexible back is also connected to at least one clip.
6. A loose-leaf notebook according to claim 5, characterized in that, The clip is the same width as the flexible back width, and its two sides are fixedly connected to the flexible back width.
7. A loose-leaf notebook according to claim 6, characterized in that, The clip is used to insert a pen clip.
8. A loose-leaf notebook according to claim 5, characterized in that, A bag piece is fixedly connected to the bottom inner surface of the flexible back panel, and the two sides and bottom edge of the bag piece are fixedly connected to the flexible back panel.
