Book fastener with movable clip

By attaching independently operable clips to a rod-shaped holder, the book closure device addresses issues of retention imbalance and frequent clip adjustments, ensuring stable page maintenance.

JP3251145UActive Publication Date: 2025-05-02松尾 太樹
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Patent Information

Application Number
JP2025000674U
Authority / Receiving Office
JP · JP
Patent Type
Utility models
Current Assignee / Owner
Filing Date
2025-03-03
Publication Date
2025-05-02
Estimated Expiration
2035-03-03

AI Technical Summary

Technical Problem

Existing book closure devices often experience imbalance in retention force, causing the book to shift from its holding position, and require frequent opening and closing of clips to maintain the desired page state.

Method used

Attaching two independently operable clips to both ends of a rod-shaped holder, allowing for adjustable positioning and range of motion to prevent unintended closure and maintain the book in the user's desired open state.

Benefits of technology

The solution effectively prevents the book from shifting due to imbalance and allows the user to maintain any desired page state without repeatedly opening and closing the clips.

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Abstract

To provide a book closing device which solves the problem that a book comes off from a holding position by its own force due to an imbalance in holding force and that a book cannot be held at an arbitrary opening degree. [Solution] A round rod 3 is attached to each end of a rod-shaped holder 1, and an independent clip 2 that holds metal fittings and a spring with the round rod is attached to each end. Also, by giving each clip a range of motion, it is possible to hold a book at any open level.
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Description

[Technical field]

[0001] This device is a book-keeping device that has an independent clip attached to each end of a rod-shaped holder, and by giving each clip a range of motion, it can hold books at any open level. [Background technology]

[0002] When holding a book such as sheet music, if a single clip is used, the spine of the book must be clamped or the paper that makes up the book will attempt to return to its original shape, causing the book to close. Also, when the spine is clamped, the clip's holding force is concentrated in a very narrow area of ​​the spine, so if the holding position does not match the center of the force acting in the direction of closing the clip, the clip will come off naturally due to the imbalance in the force closing the clip. Also, if there is a difference in the thickness of the book in the clamping area, the clip will come off naturally due to the imbalance in the force closing the clip.

[0003] In order to avoid the spine part mentioned above, clips have two or more holding parts and operate by pressing one place, so when the clip is opened, all of the clip openings open at the same time. Therefore, in order to hold the book in the position intended by the user, such as at the maximum open position, it was necessary to open the clip again and adjust the whole clip to the optimal position each time before closing the clip. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 63-267599 Summary of the Invention [Problem to be solved by the invention]

[0005] This is intended to solve the problem of book closures coming out of their holding position due to an imbalance in their holding force.

[0006] This is intended to solve the problem that after closing the clip at a desired position and holding the page, the book cannot be opened to a desired state without reopening the clip. [Means for solving the problem]

[0007] This device solves the problem by attaching two clips, which can be opened and closed individually, to both ends of a rod-shaped holding device, thereby preventing the spine of the book from becoming the holding position.

[0008] This device solves the problem by attaching the clips to the book and then moving each clip within its operating range, so that the book can be opened and held in the position intended by the user. The clips do not move easily due to the dimensional difference between the fitting part of the holding device and the clip, and the book does not close due to the restoring force of the book or move to an unintended position, solving the problem. Effect of the Invention

[0009] As described above, the movable clip book closure of the present invention helps to hold a book open by holding the book open and at any open angle, and by holding any page open. [Brief description of the drawings]

[0010] [Figure 1] 1 is a front view showing one embodiment of a book closing device with a movable clip according to the present invention; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] A round bar and a clip that holds the metal fittings and spring are attached to each end of the rod-shaped retainer. The end face of the round bar opposite the rod-shaped retainer is bent or another member is attached to limit the range of movement of the clip. The diameter of the round bar has an extremely small difference in size from the hole diameter of the clip's metal fittings, so that unintended movement of the clip by the user is naturally limited by friction between the round bar and the clip metal fittings. EXAMPLES

[0012] An embodiment will be described below with reference to the attached drawings. Reference numeral 1 denotes a rod-shaped holder made of wood or other suitable material, 2 denotes a clip, and 3 denotes a round bar that holds the metal fittings and spring of the clip. The end of 3 opposite 1 is bent to prevent 2 from falling off and to limit the range of movement.

[0013] Since one embodiment of the present invention has the above-mentioned structure, when it is used as a book fastener, the clips on the left and right sides are opened and closed to attach it to the target book. [Explanation of symbols]

[0014] 1 Rod-shaped holder 2 Clips 3 Holding rod

Claims

1. A book-closing device consisting of a rod-shaped holder with clips attached to both ends.

2. This book-closing device has clips attached to both ends of a rod-shaped holder each with a longitudinal operating range, allowing the user to hold the book open in any position of their choice after holding it.

Citation Information

Patent Citations

  • Clip for page hold-down

    JP1988267599A