Soft plastic loose-leaf binding ring and book

Abstract

The utility model discloses a soft plastic loose-leaf binding ring and a book, the soft plastic loose-leaf binding ring comprises a hollow cylindrical main body with two open ends, the cylindrical main body is made of soft or flexible materials, the cylindrical main body is provided with a spiral groove along the axial direction so that the cylindrical main body is in a spiral winding shape, and the spiral groove is formed in the cylindrical main body. Two end points of the spiral groove are respectively communicated with the opening of the corresponding cylindrical main body, and two opposite positioning extension bodies extend from the peripheral wall of one end of the cylindrical main body at two sides of an end point notch of the spiral groove. According to the utility model, the handfeel is better, the hand cannot be interfered, and the loose leaves cannot be damaged.

Description

Technical Field

[0001] This utility model relates to the field of loose-leaf binding technology, and in particular to a flexible plastic loose-leaf binding ring and a booklet. Background Technology

[0002] Currently, there are many types of binding rings available on the market for loose-leaf bindings. For example, metal binding rings have a complex structure, requiring pressing to open and close, making them cumbersome to operate. Their rigid material also significantly reduces comfort and convenience. Another type is soft plastic binding rings, made of synthetic plastics such as polypropylene and polyethylene, which offer a smooth feel. Soft binding rings are generally divided into two types: spiral and comb-shaped parallel rings. Spiral rings cause misalignment when turning pages, making them inconvenient to install and remove, and their limited shape prevents them from becoming mainstream. Comb-shaped parallel rings, on the other hand, are aesthetically pleasing, but require welding to form the ring, making it impossible to install and remove pages. However, both types of soft binding rings on the market have drawbacks, such as uncomfortable feel, inability to install and remove pages, misalignment when turning pages, lack of reusability, and high cost. They can also cause discomfort when writing on the reverse side and their large size reduces convenience. Utility Model Content

[0003] The purpose of this utility model is to design a flexible plastic loose-leaf binding ring and a booklet to overcome the shortcomings of the above-mentioned technologies.

[0004] This utility model designs a flexible plastic loose-leaf binding ring, including a hollow cylindrical body with openings at both ends. The cylindrical body is made of a soft or flexible material. The cylindrical body has a spiral groove along its axial direction to make the cylindrical body spirally wound. The two ends of the spiral groove are respectively connected to the openings of the corresponding cylindrical body. Two opposing positioning extensions extend from the peripheral wall of one end of the cylindrical body at the notches at the ends of the spiral grooves. When the cylindrical body is installed in the loose-leaf binding, the positioning extensions are placed between the pages to play a positioning role. When the loose-leaf binding is turned, the cylindrical body will not rotate with the pages.

[0005] Preferably, when viewed from the cross-sectional angle of the cylindrical body, the positioning extension is located slightly below the horizontal centerline.

[0006] Further optimization involves making the opposing surfaces of the two positioning extensions parallel to each other.

[0007] Further optimization involves leaving a gap between the horizontal planes of the two positioning extensions.

[0008] Further optimization involves different lengths for the two positioning extensions.

[0009] Preferably, the spiral groove is axially straight at the end furthest from the positioning extension and forms a chamfer with the port of the cylindrical body.

[0010] Further optimization is achieved by integrating the cylindrical main body and the positioning extension body, both of which are made of soft plastic.

[0011] Preferably, the two end notches are offset along the axis of the main body of the cylinder.

[0012] This utility model also designs a booklet, including a loose-leaf body and the aforementioned soft plastic loose-leaf binding ring. The loose-leaf body has a binding hole on its side. The spiral groove passes through the binding hole after the end notch away from the positioning extension body deforms and opens, serving as the starting point. The cylindrical body is rotated and wound between the binding hole and the edge of the loose-leaf body, thereby stacking and fixing multiple loose-leaf bodies together.

[0013] Further optimization involves placing the two positioning extensions between the front and back covers of the loose-leaf body, between the back cover and the inner pages, or between the inner pages.

[0014] The technical advantage of this invention is that the binding ring is a hollow cylindrical body made of flexible plastic material, with openings at both ends. A spiral groove is formed along the axial direction of the cylindrical body, giving it a spiral winding structure. The two ends of the spiral groove are notched, and these notches communicate with the openings at both ends of the cylindrical body. This allows the notches to deform and pass through the binding holes of the loose-leaf body. As the cylindrical body rotates, it winds around the loose-leaf body, thus securing multiple stacked loose-leaf sheets. A horizontally extending positioning extension is provided at one end of the cylindrical body's notch. Both sides of the positioning extension are horizontal. After the tubular body is bound, the positioning extension can be sandwiched between the pages of the loose-leaf body, or between the cover and back cover, etc., without affecting the aesthetics or use. Moreover, it will not cause the tubular body to rotate when turning the pages. When it is necessary to remove the binding ring, simply pull the positioning extension. The positioning extension will deform the tubular body together, allowing the tubular body to separate from the binding hole of the loose-leaf body. The operation is very convenient, and the binding ring can be reused. It not only has a better feel, but also does not interfere with the hand or cause damage to the loose-leaf body. Attached Figure Description

[0015] Figure 1 This is a structural diagram of the flexible plastic loose-leaf binding ring;

[0016] Figure 2 This is a top view of the flexible plastic loose-leaf binding structure;

[0017] Figure 3 This is a side view of the structure of a flexible plastic loose-leaf binding ring;

[0018] Figure 4This is a schematic diagram of the structure in which the notch at the end of a flexible plastic loose-leaf binding ring passes through the binding hole;

[0019] Figure 5 This is a schematic diagram of a flexible plastic binder ring installed inside the binding hole;

[0020] Figure 6 This is a structural diagram of the positioning extension of the flexible plastic binder ring when it is pulled.

[0021] Figure 7 This is a schematic diagram of a structure in which two flexible plastic loose-leaf binding rings are installed on a single booklet.

[0022] Figure 8 This is a structural diagram showing the positioning extension of the flexible plastic binder ring, which is held between the loose pages.

[0023] In the diagram: 1. Cylindrical body; 2. Spiral groove; 3. End notch; 4. Positioning extension; 5. Loose-leaf body; 6. Binding hole. Detailed Implementation

[0024] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0025] This utility model provides a booklet, including a loose-leaf body 5 and a flexible plastic binding ring. The loose-leaf body 5 has a binding hole 6 on its side, which is elongated or rectangular along the length of the loose-leaf body 5.

[0026] The flexible plastic loose-leaf binding ring includes a hollow cylindrical body 1 with openings at both ends. The cylindrical body 1 is made of a soft or flexible material, which makes the cylindrical body 1 deformable and soft, with a better feel, and will not squeeze the loose-leaf pages and cause damage. The cylindrical body 1 has a spiral groove 2 along the axial direction. The spiral groove 2 has a certain width. The two ends of the spiral groove 2 extend to the two ends of the cylindrical body 1 and communicate with the openings at both ends. This makes the cylindrical body 1 spirally wound. The two ends of the spiral groove 2 form notches. Finally, the notches at the ends deform and open, and then pass into the binding hole 6 of the loose-leaf pages. Then, as the cylindrical body 1 rotates, the cylindrical body 1 completely passes through the binding hole 6.

[0027] Two positioning extensions 4 are provided on the outer periphery of one end of the cylindrical body 1. The two positioning extensions 4 extend out from both sides of the notch 3 at one end of the spiral groove 2. That is, the positioning extensions 4 are integral with the cylindrical body 1, and the two positioning extensions 4 are arranged opposite to each other.

[0028] From the perspective of the cross-section of the cylindrical body 1, the two positioning extensions 4 are flat and elongated structures and are arranged parallel to each other. The two positioning extensions 4 are located slightly below the horizontal center line of the cross-section circle of the cylindrical body 1, that is, not located at the exact horizontal center line and vertical center line.

[0029] The opposing surfaces of the two positioning extensions 4 are horizontal planes that are parallel to each other. Alternatively, the surfaces of the two positioning extensions 4 that are far apart from each other can also be horizontal planes. This makes it easier for the positioning extensions 4 to be clipped into the page after binding without creating an abrupt appearance.

[0030] In addition, the two positioning extensions 4 have different lengths, which makes it easier for the hand to grasp the longer positioning extension 4 for stretching.

[0031] Both ends of the spiral groove 2 are axially straight, which plays a certain guiding role in the insertion of the binding hole 6 after the end notch 3 is opened, making it easier for the cylindrical body 1 to be inserted. The end of the spiral groove 2 away from the positioning extension 4 forms a chamfer with the port of the cylindrical body 1, so that the end will not interfere with page turning, making page turning smoother.

[0032] Furthermore, the cylindrical main body 1 and the positioning extension body 4 are designed as a single unit, and the material is flexible plastic, such as polyurethane or silicone. It can be manufactured using injection molding.

[0033] Furthermore, the two end notches 3 of the spiral groove 2 have a positioning extension 4 on one end notch 3 and no positioning extension 4 on the other end notch 3. After the end notch 3 without the positioning extension 4 is deformed and opened, it first enters the binding hole 6 as the starting point. Then, the cylindrical body 1 is rotated and wrapped around the binding hole 6 and the edge of the loose-leaf body 5 until the cylindrical body 1 is completely located in the binding hole 6, thereby stacking and fixing multiple loose-leaf bodies 5.

[0034] Once the cylindrical body 1 is fully bound, the two positioning extensions 4 can be clamped and placed between the front and back covers, between the back cover and the inner pages, or between the inner pages of the loose-leaf body 5. This is very flexible and can adapt to loose-leaf bodies 5 of different thicknesses.

[0035] Furthermore, the two end notches 3 are offset along the axis of the main body 1, meaning that the two end notches 3 are not on the same straight line. When the main body 1 is bound to the loose-leaf body 5, the positioning extension 4 is clamped between the cover and back cover or between the pages, while the end notches 3 without the positioning extension 4 face the loose-leaf body 5 and are in a hidden position, not exposed on the outside. This not only makes the appearance more aesthetically pleasing, but also does not interfere with the end notches 3.

[0036] In addition, in this embodiment, as Figure 7As shown, a main body 5 of the booklet has two symmetrical binding holes 6 on one side. A flexible plastic binder ring is attached to each binding hole 6, allowing the pages to be turned stably. Of course, multiple binding holes 6 can be provided on the same main body 5, with the flexible plastic binder rings corresponding to the binding holes 6 one-to-one.

[0037] This utility model is not limited to the above-described preferred embodiments. Anyone can derive other forms of products under the guidance of this utility model. However, regardless of any changes made in their shape or structure, any technical solution that is the same as or similar to this application falls within the protection scope of this utility model.

Claims

1. A flexible plastic loose-leaf binding ring, characterized in that, It includes a hollow cylindrical body (1) with openings at both ends. The cylindrical body (1) is made of soft plastic material. The cylindrical body (1) has a spiral groove (2) along the axial direction so that the cylindrical body (1) is spirally wound. The two ends of the spiral groove (2) are respectively connected to the openings of the corresponding cylindrical body (1). Two opposing positioning extensions (4) extend from the peripheral wall of one end of the cylindrical body (1) at both sides of the notch (3) at the end of the spiral groove (2).

2. The flexible plastic loose-leaf binding ring according to claim 1, characterized in that, From the cross-sectional view of the cylindrical body (1), the positioning extension (4) is located slightly below the horizontal center line.

3. The flexible plastic loose-leaf binding ring according to claim 2, characterized in that, The opposing faces of the two positioning extensions (4) are parallel to each other.

4. The flexible plastic loose-leaf binding ring according to claim 3, characterized in that, A gap is left between the horizontal planes of the two positioning extensions (4).

5. A flexible plastic loose-leaf binding ring according to claim 4, characterized in that, The two positioning extensions (4) have different lengths.

6. The flexible plastic loose-leaf binding ring according to claim 1, characterized in that, The spiral groove (2) is axially straight at the end far from the positioning extension (4) and forms a chamfer with the port of the cylindrical body (1).

7. A flexible plastic loose-leaf binding ring according to claim 5, characterized in that, The cylindrical body (1) and the positioning extension (4) are integral and both are made of soft plastic.

8. A flexible plastic loose-leaf binding ring according to claim 1, characterized in that, The two end notches (3) are offset along the axis of the cylindrical body (1).

9. A notebook, characterized in that, The assembly includes a loose-leaf body (5) and a flexible plastic loose-leaf binding ring as described in any one of claims 1 to 8. A binding hole (6) is provided on the side of the loose-leaf body (5). The binding hole (6) is elongated along the length of the loose-leaf body (5). The spiral groove (2) passes through the binding hole (6) after the end notch (3) away from the positioning extension body (4) is deformed and opened. The cylindrical body (1) is wound around the binding hole (6) and the edge of the loose-leaf body (5) by rotation, thereby stacking and fixing multiple loose-leaf bodies (5).

10. A booklet according to claim 9, characterized in that, The two positioning extensions (4) are placed between the front and back covers, between the back cover and the inner pages, or between the inner pages of the loose-leaf body (5).

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