Loose-leaf binder

Abstract

The utility model discloses a loose-leaf binder. The loose-leaf binder comprises a base, at least one clamping piece and a bent leading-in structure, the clamping piece is arranged above the base and is matched with the base to form a clamping arm structure; the bending leading-in structure is arranged at the rear end of the base and is wound towards the direction of the clamping piece to form a bending channel; the bent leading-in structure is fixedly connected with or integrally formed with the base and the clamping piece, and an outlet of the bent leading-in structure is aligned with the middle position of the clamping piece and the base. Through the arrangement, the loose-leaf binder is compact in structure and flexible to use, has an import guiding function, and improves the use experience of a user.

Description

Technical Field

[0001] This utility model relates to the field of stationery technology, and in particular to a binder. Background Technology

[0002] A loose-leaf binder is a common stationery item used in office, study, and document organization settings. It's primarily used to hold, manage, and archive paper documents. Its clamping structure allows users to temporarily bind multiple pages together, facilitating daily review, editing, and portability. Compared to traditional binding methods, loose-leaf binders offer advantages such as reusability, ease of disassembly, and convenient page replacement, making them widely used for various paper management needs, including meeting minutes, contracts, and course handouts.

[0003] Existing binders generally employ a long, rectangular design, using elastic clamps on the top and bottom to hold the paper in place. While this type of structure offers some gripping capability, it also has significant shortcomings. First, because the clamping force comes from pressing against the top and bottom edges of the paper, the paper is prone to skewing, jamming, or folding during insertion, especially noticeable with rapid insertion or when the paper is soft. Second, this structure lacks effective guidance during paper feeding, resulting in a poor user experience and impacting efficiency. Furthermore, traditional long, rectangular binders are typically quite long and bulky, making them unsuitable for portability and use in confined spaces. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide a binder. This binder has a compact structure, is more flexible in use, and has an import guidance function.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A binder includes: a base, at least one clamping piece, and a curved guide structure; the clamping piece is disposed above the base and cooperates with the base to form a clamping arm structure; the curved guide structure is disposed at the rear end of the base and is wound towards the clamping piece to form a curved channel; the curved guide structure is fixedly connected to the base and the clamping piece respectively or integrally formed, and its outlet is aligned with the middle position between the clamping piece and the base.

[0007] Furthermore, the clamping piece is a plate-like structure made of elastic material.

[0008] Furthermore, the number of clamping plates is two or more, arranged at intervals above the base.

[0009] Furthermore, the curved guide structure is wound in an arc or spiral shape along the paper insertion direction.

[0010] Furthermore, the clamping plate is arranged parallel to the base.

[0011] The aforementioned binder features a curved guide structure between the base and the clamping plate, allowing paper to be smoothly guided into the clamping area along the curved channel formed by the winding. This effectively avoids the problems of difficult paper insertion and paper jams found in traditional top-and-bottom clamping structures. This structure not only improves ease of use but also boasts advantages such as compact size and flexible clamping, making it particularly suitable for paper storage needs in portable or space-constrained environments. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the first embodiment of the binder provided by this utility model;

[0013] Figure 2 This is a schematic diagram of a second embodiment of the binder provided by this utility model;

[0014] Figure 3 This is a schematic diagram of a third embodiment of the binder provided by this utility model;

[0015] Figure 4 This is a left view of the binder provided according to this utility model. Detailed Implementation

[0016] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0017] In addition, to clearly illustrate the technical solution of this application, the following are also defined: Figure 1 The top, bottom, left, right, front, and back sides are shown.

[0018] like Figures 1 to 4 As shown, this application provides a binder, which includes: a base 1, at least one clamping piece 2, and a curved guide structure 3.

[0019] Specifically, the clamping piece 2 is positioned above the base 1, forming a clamping arm structure in conjunction with the base 1; the curved guide structure 3 is located at the rear end of the base 1 and is wound towards the clamping piece 2 to form a curved channel; the curved guide structure 3 is fixedly connected to the base 1 and the clamping piece 2 or integrally formed, with its outlet 31 aligned with the midpoint between the clamping piece 2 and the base 1. By using the curved guide structure 3 to form a guide channel, the smoothness of the paper feeding process is significantly improved, avoiding problems such as jamming and skewing that occur when paper is directly inserted in traditional top and bottom clamping structures. Since the outlet 31 of the guide structure is directly aligned with the midpoint between the clamping piece 2 and the base 1, the paper can accurately enter the clamping area under natural curling, improving operational convenience and insertion efficiency. In addition, the binder has a compact structure and small overall size, making it suitable for portable applications or applications with limited office space.

[0020] More specifically, the clamping piece 2 is a plate-like structure made of elastic material. On the one hand, it provides an automatically returning clamping force, maintaining paper stability without additional operation; on the other hand, the plate-like structure is simple to manufacture and low in cost, making it suitable for large-scale injection molding or stamping. The elastic structure is not easily deformed during repeated use, improving the service life and reliability of the clamping piece 2.

[0021] like Figure 1 As shown, there are two or more clamping tabs 2, spaced apart above the base 1. The multiple clamping tabs 2 significantly improve the flexibility and stability of the binder; even if some clamping tabs 2 are damaged, normal use can still be maintained by the other tabs. The spaced arrangement also optimizes the force distribution, avoiding paper indentation caused by concentrated clamping, and improving the flatness and overall aesthetics of the paper.

[0022] like Figures 1 to 3 As shown, the curved guide structure 3 is wound in an arc or spiral shape along the paper insertion direction. The arc structure provides a larger radius of curvature, which is suitable for a smooth transition of paper of regular thickness; while the spiral structure is suitable for more compact spaces, and the continuous winding increases the guide length and the contact area with the paper, thereby improving the guide stability.

[0023] like Figure 4 As shown, the clamping piece 2 is arranged parallel to the base 1, resulting in a simple overall structure, convenient manufacturing, and improved consistency and reliability during batch assembly. This structure achieves a uniform distribution of clamping force along the paper thickness direction, thereby improving the stability of the clamping effect and the paper protection performance.

[0024] The above description of embodiments of the present invention, through which those skilled in the art are able to implement or use the present invention, will be readily apparent to those skilled in the art. Various modifications to these embodiments will be readily apparent to those skilled in the art. The general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novelty disclosed herein.

Claims

1. A binder, characterized in that, include: Base (1); At least one clamping piece (2) is disposed above the base (1) and cooperates with the base (1) to form a clamping arm structure; A curved guide structure (3) is provided at the rear end of the base (1) and is wound toward the clamping piece (2) to form a curved channel; the curved guide structure (3) is fixedly connected to the base (1) and the clamping piece (2) respectively or integrally formed, and its outlet (31) is aligned with the middle position of the clamping piece (2) and the base (1).

2. The binder as described in claim 1, characterized in that, The clamping piece (2) is a plate-shaped structure made of elastic material.

3. The binder as described in claim 1, characterized in that, The number of clamping pieces (2) is two or more, arranged at intervals above the base (1).

4. The binder as described in claim 1, characterized in that, The curved guide structure (3) is wound in an arc or spiral shape along the paper insertion direction.

5. The binder as described in claim 1, characterized in that, The clamping piece (2) is arranged parallel to the base (1).

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