Loose-leaf notebook

Abstract

A loose-leaf notebook, comprising a front cover plate (1), a rear cover plate (2), a flexible-rigid spine (3), and a binder (4). The flexible-rigid spine (3) comprises a rigid spine body (3-2) and flexible hinge bodies (3-3). The two sides of the rigid spine body (3-2) are each provided with one flexible hinge body (3-3), and the two flexible hinge bodies (3-3) are respectively connected to the front cover plate (1) and the rear cover plate (2). The flexible-rigid spine (3) combines flexible and rigid materials, allowing for easy unfolding or folding, so that the loose-leaf notebook of the present application can be opened or closed smoothly and without obstruction. Moreover, the front cover plate (1) and the rear cover plate (2) can be fully flattened when opened, and can be neatly folded when closed. When the loose-leaf notebook is closed, the rigid spine body (3-2) is supported between the front cover plate (1) and the rear cover plate (2), so that the front cover plate (1), the rear cover plate (2), and the rigid spine body (3-2) form a stable three-sided structure, enabling the loose-leaf notebook to stand vertically on a desktop, facilitating vertical storage of the loose-leaf notebook.

Description

A type of loose-leaf book

[0001] This application claims priority to Chinese patent application No. 202422931488.1, filed with the China National Intellectual Property Administration on November 29, 2024, entitled "A Loose-leaf Book". Technical Field

[0002] This application relates to the technical field of stationery, and more specifically to a loose-leaf notebook. Background Technology

[0003] Currently, most loose-leaf notebooks on the market have covers made of a single piece of rigid material. The spine and front and back covers are connected by hinges formed by bending. Because the rigid material of the cover has a certain degree of toughness, there is some resistance when opening or closing the cover. Moreover, the front and back covers will curl up to a certain extent when opening or closing, and cannot be completely flattened when opening or closed, resulting in a poor user experience. Summary of the Invention

[0004] The technical problem to be solved by this application is to provide a loose-leaf notebook in which the spine of the cover can be easily bent between the front and back covers, the cover can be opened or closed smoothly and without obstruction, and the front and back covers can be completely flat when opened and can be folded flat when closed.

[0005] The technical solution of this application is to provide a loose-leaf notebook, including a front panel, a back panel, a hard and soft spine, and a clip. The hard and soft spine includes a hard spine body and a soft hinge body. A hinge body is provided on each side of the hard spine body, and the two hinge bodies are respectively connected to the front panel and the back panel.

[0006] Compared with the prior art, the loose-leaf notebook of this application has the following advantages: A hinge mechanism is provided between the spine and the front and rear panels. Thus, when the front or rear panel is opened, the hinge mechanism can be easily unfolded; when the front or rear panel is closed, the hinge mechanism can be easily bent, making the opening and closing of the loose-leaf notebook of this application smooth and unobstructed. Furthermore, the front and rear panels can be completely flattened when opened and can be neatly folded when closed. With the spine, when the loose-leaf notebook of this application is closed, the spine is supported between the front and rear panels, forming a stable three-sided structure that allows it to stand upright on a table, facilitating vertical storage of the loose-leaf notebook.

[0007] Preferably, the rigid and flexible backrest also includes rigid plate connecting hardware. Two plate connecting hardware pieces are respectively mounted on two hinged flexible pieces and are used to connect the front and rear plates respectively. Using this structure, the front and rear plates are directly connected by the plate connecting hardware, ensuring a reliable connection between the rigid and flexible backrest and the front and rear plates.

[0008] Preferably, the width of the spine hardware is not less than 3 cm, the width of the hinge hardware is not less than 1 cm, and the width of the plate connecting hardware is not less than 1.5 cm. This structure ensures that the width of the spine hardware conforms to the thickness specifications of commonly used folders and also increases the connection strength between the spine hardware and the hinge hardware. If the spine hardware is too narrow, its thickness-to-width ratio will be too large, and the thickness change at the connection point between the spine hardware and the hinge hardware will be too steep, making the connection prone to breakage. The width of the hinge hardware ensures that it can bend and flatten smoothly, avoiding excessive stress and cracking during bending due to its narrow width. The width of the plate connecting hardware provides sufficient connection area between the plate connecting hardware and the front and rear plates, preventing the connection area from being too narrow and causing separation between different materials during page turning.

[0009] Preferably, the rigid and flexible spine, consisting of the spine rigidity, the plate connecting rigidity, and the hinge flexibleity, is a one-piece molded structure. With this structure, the spine rigidity, plate connecting rigidity, and hinge flexibleity can be extruded from both rigid and flexible materials using an extrusion machine. This one-piece molding structure improves production efficiency and ensures that all parts of the rigid and flexible spine are reliably connected together.

[0010] Preferably, the front and rear plates are connected to the inner surfaces of their respective plate-connecting hardware. With this structure, flipping open the front or rear plate allows the corresponding plate-connecting hardware to be flipped outwards, preventing the connection between the front or rear plate and the corresponding plate-connecting hardware from tearing. If the front and rear plates are connected to the outer surfaces of their respective plate-connecting hardware, flipping open the front or rear plate will subject the connection between it and the corresponding plate-connecting hardware to a tearing force, easily causing the front or rear plate to tear apart.

[0011] Preferably, at least one connecting rib is provided on the inner surface of the plate connecting hardware, and the connecting rib extends along the length direction of the plate connecting hardware; the front plate and the rear plate respectively contact and connect with at least one connecting rib of the corresponding plate connecting hardware. With this structure, by providing connecting ribs on the plate connecting hardware to connect with the front plate or the rear plate, whether by welding or bonding, it can be ensured that there is complete contact between the plate connecting hardware and the front plate or the rear plate without any gaps.

[0012] Preferably, limiting ribs are provided on the inner surface of the plate connecting hardware, and the limiting ribs are arranged along the length direction of the plate connecting hardware; the front plate and the rear plate are respectively limited by the limiting ribs of the corresponding plate connecting hardware. With this structure, the positions of the front plate and the rear plate and the corresponding plate connecting hardware are positioned, which facilitates the connection operation between the two and ensures a flat connection.

[0013] Preferably, the inner surface of the plate connecting hardware is provided with limiting ribs and at least one connecting rib. Both the limiting ribs and the connecting ribs extend along the length direction of the plate connecting hardware, and the height of the limiting ribs is greater than the height of the connecting ribs. The front plate and the rear plate are respectively limited by the limiting ribs of the corresponding plate connecting hardware, and the front plate and the rear plate respectively contact and connect with at least one connecting rib of the corresponding plate connecting hardware. With this structure, the limiting ribs limit the position between the front plate and the rear plate and the corresponding plate connecting hardware, which facilitates the connection operation between the two. The height of the limiting ribs is greater than the height of the connecting ribs, so that the connecting ribs can fully contact the front plate or the rear plate and connect smoothly.

[0014] Preferably, the outer surface of the hinge body has at least one bending groove, which is provided along the length of the spine body. With this structure, when the front or rear panel is closed, the hinge body bends, and the bending groove flips outward, preventing the outer surface of the hinge body from being too tight and causing the front and rear panels to not close flat; when the front or rear panel is opened, the hinge body unfolds, and the bending groove retracts inward, preventing the outer surface of the hinge body from being too loose and wrinkled, which would prevent the front and rear panels from not being completely flat.

[0015] Preferably, the clamp is located on the inner side of the back panel, and the clamp is connected to the back panel by rivets. With this structure, the connection between the clamp and the cover of the loose-leaf book is simple and easy to assemble. Attached Figure Description

[0016] Figure 1 is a structural diagram of the open state of the loose-leaf book of this application.

[0017] Figure 2 is a schematic diagram of the structure of the loose-leaf book of this application in the closed state.

[0018] Figure 3 is a schematic diagram of the spine structure of the cover of the loose-leaf book of this application.

[0019] As shown in the figure: 1. Front panel, 2. Rear panel, 3. Soft and hard spine, 3-1. Panel connecting hardware, 3-11. Connecting rib, 3-12. Limiting rib, 3-2. Back spine hardware, 3-3. Hinge hardware, 3-31. Bending groove, 4. Clamp, 5. Rivet, 6. Loose-leaf paper. Detailed Implementation

[0020] To better understand this application, various aspects of this application will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are merely illustrative of exemplary embodiments of this application and are not intended to limit the scope of this application in any way. Throughout the specification, the same reference numerals refer to the same elements.

[0021] In the accompanying drawings, the thickness, size, and shape of the objects have been slightly exaggerated for illustrative purposes. The drawings are for illustrative purposes only and are not drawn to scale.

[0022] It should also be understood that the terms "comprising," "having," "including," and "containing," when used in this specification, indicate the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or combinations thereof. Furthermore, when expressions such as "...at least one" appear after a list of listed features, they modify the entire listed feature, not individual elements in the list.

[0023] In this application and its embodiments, the outer surface refers to the surface facing outward when the front or rear sheet of the loose-leaf book is closed, that is, the surface of the front sheet away from the clamp; the inner surface refers to the surface facing inward when the front or rear sheet of the loose-leaf book is closed, that is, the surface of each sheet close to the clamp.

[0024] Example 1:

[0025] As shown in Figures 1 and 2, the loose-leaf book of this application includes a front panel 1, a back panel 2, a soft and hard spine 3, and a clamp 4. The clamp 4 is disposed on the inner side of the back panel 2, and the clamp 4 is connected to the back panel 2 by rivets 5. Loose-leaf paper 6 is disposed on the clamp 4.

[0026] As shown in Figure 3, the rigid and flexible spine 3 includes a rigid spine body 3-2, a plate connecting body 3-1, and a flexible hinge body 3-3. Each side of the spine body 3-2 has a plate connecting body 3-1, which connects the front plate 1 and the rear plate 2, respectively. Hinges 3-3 connect both the plate connecting bodies 3-1 and the spine body 3-2. The spine body 3-2 and the plate connecting bodies 3-1 are made of polypropylene (PP), while the hinges 3-3 are made of thermoplastic elastomer (TPE). The rigid and flexible spine 3 is formed by extrusion of these two materials, creating a one-piece structure combining rigid and flexible components. The spine body is 3 cm wide, the hinges are 1 cm wide, and the plate connecting bodies are 1.5 cm wide.

[0027] Multiple connecting ribs 3-11 are provided on the inner surface of the plate connecting hardware 3-1, extending along the length of the plate connecting hardware 3-1. Limiting ribs 3-12 are also provided on the inner surface of the plate connecting hardware 3-1, extending along the length of the plate connecting hardware 3-1, with a height greater than that of the connecting ribs 3-11. The corresponding limiting ribs 3-12 of the plate connecting hardware 3-1 each limit the sides of the front plate 1 and the rear plate 2, aligning their relative positions so that the outer surfaces of the front plate 1 and the rear plate 2 respectively contact the corresponding connecting ribs 3-11 of the plate connecting hardware 3-1, and are then connected together by welding.

[0028] The outer surface of the hinge 3-3 has at least one bending groove 3-31, which is provided along the length of the back rigid body 3-2. When the front panel 1 or the rear panel 2 is closed, the hinge 3-3 bends, and the bending groove 3-31 flips outward to prevent the outer surface of the hinge 3-3 from being too tight, which would prevent the front panel 1 and the rear panel 2 from not being able to close flat. When the front panel 1 or the rear panel 2 is opened, the hinge 3-3 unfolds, and the bending groove 3-31 retracts inward to prevent the outer surface of the hinge 3-3 from being too loose and wrinkled, which would prevent the front panel 1 and the rear panel 2 from not being able to flatten completely.

[0029] The soft and hard spine 3 combines soft and hard materials, allowing it to be easily bent or unfolded, making the opening and closing of the loose-leaf notebook of this application smooth and unobstructed; moreover, the front panel 1, the back panel 2 and the hard spine 3-2 form a stable three-sided hard structure, allowing the loose-leaf notebook of this application to stand upright on the table, making it easy to store the loose-leaf notebook vertically.

[0030] Example 2:

[0031] The difference between this embodiment and Embodiment 1 is that the soft and hard spine 3 only includes a rigid spine 3-2 and a soft hinge 3-3. A hinge 3-3 is provided on each side of the rigid spine 3-2, and the two hinges 3-3 are connected to the front panel 1 and the rear panel 2 respectively. Thus, the soft and hard spine 3 in this embodiment is also a combination of rigid and soft materials, allowing it to be easily bent or unfolded. Furthermore, the soft and hard spine 3, together with the front panel 1 and the rear panel 2, can form a stable rigid three-sided structure, standing upright on a tabletop.

[0032] The above are merely specific embodiments of this application and are not intended to limit the scope of this application. Any modifications or equivalent substitutions made to this application without departing from the spirit and scope thereof shall be covered within the protection scope of the claims of this application.

Claims

1. A loose-leaf notebook, characterized in that, It includes a front plate (1), a rear plate (2), a soft and hard spine (3) and a clamp (4). The soft and hard spine (3) includes a hard spine body (3-2) and a soft hinge body (3-3). A hinge body (3-3) is provided on each side of the spine body (3-2). The two hinge bodies (3-3) are connected to the front plate (1) and the rear plate (2) respectively.

2. The loose-leaf notebook according to claim 1, characterized in that, The soft and hard spine (3) also includes a rigid plate connecting hardware (3-1), with two plate connecting hardware (3-1) respectively set on two hinge soft bodies (3-3) and used to connect the front plate (1) and the rear plate (2).

3. The loose-leaf notebook according to claim 2, characterized in that, The width of the spine hardware (3-2) shall not be less than 3 cm, the width of the hinge hardware (3-3) shall not be less than 1 cm, and the width of the plate connecting hardware (3-1) shall not be less than 1.5 cm.

4. The loose-leaf notebook according to claim 2, characterized in that, The soft and hard spine (3), which consists of the spine hardware (3-2), the plate connecting hardware (3-1), and the hinge soft (3-3), is a one-piece molded structure.

5. The loose-leaf notebook according to claim 2, characterized in that, The front plate (1) and the rear plate (2) are respectively connected to the inner side of the corresponding plate connecting hardware (3-1).

6. The loose-leaf notebook according to claim 5, characterized in that, At least one connecting rib (3-11) is provided on the inner side of the plate connecting hardware (3-1), and each connecting rib (3-11) extends along the length direction of the plate connecting hardware (3-1); the front plate (1) and the rear plate (2) respectively contact and connect with at least one connecting rib (3-11) of the corresponding plate connecting hardware (3-1).

7. The loose-leaf notebook according to claim 5, characterized in that, Limiting ribs (3-12) are provided on the inner side of the plate connecting hardware (3-1), and the limiting ribs (3-12) are provided along the length direction of the plate connecting hardware (3-1); the front plate (1) and the rear plate (2) are respectively limited by the limiting ribs (3-12) of the corresponding plate connecting hardware (3-1).

8. The loose-leaf notebook according to claim 5, characterized in that, The inner side of the plate connecting hardware (3-1) is provided with a limiting rib (3-12) and at least one connecting rib (3-11). The limiting rib (3-12) and the connecting rib (3-11) both extend along the length direction of the plate connecting hardware (3-1). The height of the limiting rib (3-12) is greater than the height of the connecting rib (3-11). The front plate (1) and the rear plate (2) are respectively limited by the limiting rib (3-12) of the corresponding plate connecting hardware (3-1), and the front plate (1) and the rear plate (2) respectively contact and connect with at least one connecting rib (3-11) of the corresponding plate connecting hardware (3-1).

9. The loose-leaf notebook according to claim 1, characterized in that, At least one bending groove (3-31) is provided on the outer side of the hinge soft body (3-3), and the bending groove (3-31) is provided along the length direction of the spine hard body (3-2).

10. The loose-leaf notebook according to claim 1, characterized in that, The clamp (4) is set on the inner side of the rear plate (2), and the clamp (4) and the rear plate (2) are connected by rivets (5).

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