A replacement core for a loose-leaf binder

Abstract

The utility model relates to stationery field discloses an easy installation and positioning's loose -leaf notebook replacement core, including replacement core casing, the inner wall of replacement core casing is opened with a plurality of through -holes, the through -hole edge is provided with the salient point, the two edge places of replacement core casing are opened with the guide gap respectively, replacement core casing bottom is opened with the page gap, and the replacement core casing top is provided with the guide line, in the utility model, through setting up the salient point at the through -hole edge, can obviously increase replacement core and loose -leaf folder ring buckle's friction, effectively avoid replacement core in the use process and dislocation, ensure that the page is always neat and in line when writing and reading, simultaneously, the guide gap of edge can accurate matching loose -leaf notebook folder ring buckle position lets the user be able to fast alignment through -hole when installing, need not repeatedly adjust, improve installation efficiency greatly, especially suitable for the scene of batch replacement replacement core, optimize the convenience experience of loose -leaf replacement core use.

Description

Technical Field

[0001] This utility model relates to the field of stationery products, and in particular to a loose-leaf notebook refill that is easy to install and position. Background Technology

[0002] As students and working professionals increasingly demand higher efficiency in note-taking, the use of loose-leaf notebooks is becoming more and more widespread. From daily study to workplace meeting minutes and bullet journal creation, different scenarios place higher demands on the ease of installation and positioning stability of the refills. For example, test takers need to frequently add or remove refills for review notes, and bullet journal enthusiasts need to use refills of different styles while ensuring smooth page turning. Thus, a loose-leaf notebook refill that is easy to install and position is needed. An easy-to-install and position loose-leaf binder insert is compatible with snap-on or scissor-type loose-leaf binders. The working principle is to achieve positioning by mechanically engaging the snap-on and the retainer ring. The insert has a conventional perforated design. During installation, open the snap-on of the loose-leaf binder or pull out the back panel to open the retainer ring. Insert the insert into the retainer ring through the hole, then put the back panel back or fasten the snap-on. You will hear a click when the insert is fixed. Currently, easy-to-install and position loose-leaf notebook refills, through standardized hole positions and designs adapted to new loose-leaf binder structures, have significantly improved installation convenience and usability, bringing an efficient experience to study and office scenarios. They have played a significant and positive role in promoting the convenience and user-friendliness of the stationery industry. However, some refills still have installation misalignment issues. The multiple sets of holes in multi-hole compatible refills can cause visual interference. If users do not accurately align the binder clips or coils during installation, the refills may shift or have uneven edges, affecting writing and page-turning smoothness. Therefore, an easy-to-install and position loose-leaf notebook refill is proposed to solve the above problems. Utility Model Content

[0003] To overcome the above shortcomings, this utility model provides an easy-to-install and position binder insert, which aims to improve the problem in the prior art where the insert shifts and uneven edges occur when the user does not accurately align the binder clips or coils during installation.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: An easy-to-install and position loose-leaf notebook refill includes a refill housing, the inner wall of which has multiple through holes, the edges of which are provided with protrusions, the two edges of which are respectively provided with guide notches, the bottom of which is provided with a page-separating notch, and the top of which is provided with guide lines. As a further description of the above technical solution: The through holes are circular and are arranged at equal intervals along the side of the core shell; As a further description of the above technical solution: The protrusion is hemispherical and integrally formed on the edge of the through hole to increase the friction with the binder ring. As a further description of the above technical solution: The guide notch is semi-circular and is opened at the top and bottom of the side of the core housing. It is used to correspond to the position of the binder ring of the loose-leaf notebook and to assist the through hole in quick alignment. As a further description of the above technical solution: The page-turning notch is arc-shaped and is located at the bottom edge of the core housing to improve the page-turning speed. As a further description of the above technical solution: The guide line is a straight line and is set at the top edge of the core housing to correspond with the lines of the loose-leaf book cover and assist in the positioning and installation of the core; As a further description of the above technical solution: The core shell is made of thickened pure wood pulp paper, which has good stiffness and writing properties; As a further description of the above technical solution: The multiple through holes are compatible with clips for various loose-leaf notebook sizes.

[0005] This utility model has the following beneficial effects: 1. In this utility model, by setting protrusions on the edge of the through hole, the friction between the replacement core and the binder ring can be significantly increased, effectively preventing the replacement core from shifting or misaligning during use, ensuring that the pages are always neatly aligned when writing and reading. At the same time, the guide notch on the edge can accurately match the position of the binder ring, allowing users to quickly align the through hole during installation without repeated adjustments, greatly improving installation efficiency. It is especially suitable for scenarios where replacement cores are replaced in batches, optimizing the convenience of using the replacement core.

[0006] 2. In this utility model, the design of the page notch greatly improves the page turning speed of the loose-leaf core, solving the problems of page jamming and sticking in traditional loose-leaf notebooks, making it smoother and more efficient to look up notes and organize information. The guide line at the top can echo the lines of the loose-leaf notebook cover, providing visual assistance for the positioning and installation of the core. Attached Figure Description

[0007] Figure 1 A three-dimensional schematic diagram of an easy-to-install and position loose-leaf book insert proposed in this utility model; Figure 2 A schematic diagram of the protrusions in a loose-leaf book insert that is easy to install and position, as proposed in this utility model; Figure 3 This is a schematic diagram of the pagination notch of a loose-leaf notebook core that is easy to install and position according to this utility model.

[0008] Legend: 1. Core housing; 2. Through hole; 3. Protrusion; 4. Guide notch; 5. Page notch; 6. Guide line. Detailed Implementation

[0009] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0010] A type of easy-to-install and position loose-leaf notebook refill, as shown in the reference. Figure 1 The system includes a core housing 1, which serves as the central carrier for supporting the writing content and integrating various auxiliary structures. It provides the mounting base for components such as the through holes 2 and raised dots 3, while ensuring stiffness during writing. The inner wall of the core housing 1 has multiple through holes 2, which are crucial for connecting the core to the binder rings. These holes secure the core in place, preventing it from falling off during use. Raised dots 3 are provided along the edges of the through holes 2, increasing the contact friction between the core and the binder rings to prevent displacement and wobbling after installation. To improve stability, guide notches 4 are provided on both edges of the binder housing 1. The guide notches 4 precisely correspond to the positions of the binder rings, providing visual and physical guidance for the alignment of the through holes 2 with the rings, thus speeding up the installation process. A page-turning notch 5 is provided at the bottom of the binder housing 1. The page-turning notch 5 reduces the contact area when turning pages, lowers the resistance to page turning, and makes page turning smoother and more efficient. A guide line 6 is provided at the top of the binder housing 1. The guide line 6 serves as a visual reference for installation positioning and echoes the lines of the binder cover, helping to quickly find the correct installation position.

[0011] Reference Figures 1 to 3The through-hole 2 is circular and equidistantly arranged along the side of the core housing 1. The circular structure adapts to the shape of most binder clips, and the equidistant arrangement ensures even force distribution on the core. It also accommodates various sizes of binder clips, improving compatibility. The protrusion 3 is hemispherical, integrally formed on the edge of the through-hole 2, used to increase friction with the binder clips. The hemispherical design ensures friction without scratching the clips or hindering core insertion / removal. The integral structure makes the protrusion 3 firmly connected and less prone to falling off. The guide notch 4 is semi-circular, located at the top and bottom of the side of the core housing 1, used to align with the binder clip positions of the loose-leaf books, assisting in quick alignment of the through-hole 2. The semi-circular notch fits the clip contour, and the double notch design at the top and bottom forms bidirectional positioning, further improving alignment accuracy and shortening installation time. (Page notch...) The notch 5 is curved and located at the bottom edge of the core housing 1 to improve page-turning speed. The smooth, rounded edge allows fingers to quickly locate the notch and easily lift the paper, significantly improving page-turning smoothness. The guide line 6 is straight and located at the top edge of the core housing 1 to echo the lines of the loose-leaf notebook cover, assisting in the positioning and installation of the core. The straight line design is clear and eye-catching, ensuring the core is installed flat after alignment with the cover lines, avoiding skewing and simplifying the positioning process. The core housing 1 is made of thickened pure wood pulp paper, which has good stiffness and writeability. The thickened material makes the core less prone to deformation, preventing ink absorption and wrinkling during writing, thus improving the user experience. Multiple through holes 2 are compatible with clips of various loose-leaf notebook sizes, eliminating the need to equip different loose-leaf notebooks with separate cores, reducing usage costs and improving practicality.

[0012] The implementation principle of this application embodiment is as follows: thanks to the presence of multiple protrusions 3 fixed on both sides of the core housing 1, the core housing 1 can increase friction after being inserted into the loose-leaf book, thereby preventing the core housing 1 from shifting. Thanks to the presence of guide notches 4 opened at the two edges of the core housing 1, the core housing 1 can correspond to the position of the loose-leaf book's binder ring, thereby enabling quick alignment with the through holes 2 opened on the inner wall of the core housing 1 during installation, thus enabling quick installation of the core housing 1. Thanks to the presence of the page-turning notch 5, the page-turning speed of the loose-leaf core is greatly improved after installation. Thanks to the presence of the guide line 6 set on the core housing 1, the core housing 1 can correspond to the cover lines of the loose-leaf book, providing auxiliary positioning during core positioning installation, thereby enabling the entire loose-leaf core to be quickly positioned and installed.

[0013] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An easy-to-install and position loose-leaf notebook insert, comprising an insert housing (1), characterized in that: The inner wall of the core housing (1) is provided with multiple through holes (2), the edges of the through holes (2) are provided with protrusions (3), the two edges of the core housing (1) are respectively provided with guide notches (4), the bottom of the core housing (1) is provided with a page notch (5), and the top of the core housing (1) is provided with a guide line (6).

2. The easy-to-install and position loose-leaf notebook insert according to claim 1, characterized in that: The through holes (2) are circular and are arranged at equal intervals along the side of the core housing (1).

3. The easy-to-install and position loose-leaf notebook insert according to claim 1, characterized in that: The protrusion (3) is hemispherical and integrally formed on the edge of the through hole (2) to increase the friction with the binder ring.

4. The easy-to-install and position loose-leaf notebook insert according to claim 1, characterized in that: The guide notch (4) is semi-circular and is opened at the top and bottom of the side of the core housing (1) to correspond to the position of the binder ring of the loose-leaf book and to assist the through hole (2) in quick alignment.

5. The easy-to-install and position loose-leaf notebook insert according to claim 1, characterized in that: The page-turning notch (5) is arc-shaped and is located at the bottom edge of the core housing (1) to improve the page-turning speed.

6. The easy-to-install and position loose-leaf notebook insert according to claim 1, characterized in that: The guide line (6) is a straight line and is set on the top edge of the core housing (1) to correspond with the cover lines of the loose-leaf book and assist in the positioning and installation of the core.

7. The easy-to-install and position loose-leaf notebook insert according to claim 1, characterized in that: The core shell (1) is made of thickened pure wood pulp paper, which has good stiffness and writing properties.

8. The easy-to-install and position loose-leaf notebook insert according to claim 1, characterized in that: The multiple through holes (2) are compatible with clips for various loose-leaf notebook sizes.

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