JP3079638U - Note clip - Google Patents

Abstract

(57) [Problem] To provide an inexpensive tag clipping device at a low product cost, in which insertion of a pin shaft is easy and separation of a main body board and a mounting bracket can be performed extremely easily. SOLUTION: A cardboard body board 1 and a mounting bracket 2 are provided.
3 and a pin shaft tip 3 inserted through the communication hole.
3 is fixed by caulking on the back surface 1b side of the main body board, and the through hole 11 of the main body board 1 has a large diameter portion whose diameter from the hole virtual center Y is larger than the diameter of the circular caulking portion 33a of the pin shaft 3. 11a and a small diameter portion 11b smaller than the diameter of the circular caulking portion 33a.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a binding device for office use, specifically, a clip clip device for clamping and fixing various types of paper.

[0002]

[Prior art]

 As shown in FIG. 8, for example, an office binding device such as a binder includes a main board 1 made of cardboard and a mounting bracket 2. The mounting bracket 2 includes a metal flat plate 21 fixed to the main body board 1 and a spring holding member (paper holding member) provided on the metal flat plate 21.

The main body board 1 and the mounting bracket 2 are inserted in a state where a through hole 15 having a predetermined diameter and having a circular shape and provided in the plane of the main body board 1 and a circular hole 23 of the metal fitting 2 communicate with each other. The tip of the pin shaft 32 is caulked and fixed on the back surface 1b side of the board body 1.

In recent years, from an ecological point of view, there has been a demand for separating a binder (paper clip) from a paper main body board and a metal mounting bracket. However, in a conventional fixed structure in which a cylindrical pin shaft with a diameter approximately corresponding to the cylindrical through hole is inserted into the cylindrical through hole and the end is caulked in a circular shape, it is impossible to separate the main body board and the mounting bracket. It was very difficult work.

Accordingly, the applicant previously filed an application for a separable binder shown in FIGS. 8 and 9 (U.S. Patent No. 3,047,876). According to the binder proposed earlier, the easily breakable cut line 14 is provided in the outer periphery of the cylindrical through hole 15 through which the pin shaft 32 is inserted, that is, in the range occupied by the circular caulked portion 33a having a diameter larger than the diameter of the through hole 15. Are provided at predetermined intervals.

According to this structure, when a flathead screwdriver or the like is inserted between the main body board and the metal fitting to apply a prying force, the circular caulked portion corresponds to the corresponding main body board, that is, the impact force between adjacent cut lines. By breaking the vulnerable parts, the mounting bracket and main board can be separated.

[0007]

[Problems to be solved by the invention]

 The binders already filed shown in FIGS. 8 and 9 are designed to be easily broken by separately providing a plurality of cut lines around the through hole in addition to the cylindrical through hole. However, in the binder of this configuration, since the main body board is made of cardboard, it is impossible to open the cylindrical through hole and the cut line at the same time due to the structure of the cutting blade. Therefore, there is a disadvantage that the cost of the product rises because of the troublesome work.

[0008] Furthermore, in the binder of the application already filed in FIG. 8, although it is easier to break as compared with the conventional structure having no cut line, the entire area occupied by the circular caulking portion of the pin shaft must be broken as before. In this respect, women and children who have difficulty in destruction and who are powerless have disadvantages such as difficulty.

The present invention solves the above-mentioned problems, and provides an inexpensive tag clip which can easily insert a pin shaft and can easily separate a mounting board from a main body board. With the goal.

[0010]

[Means for Solving the Problems]

 To achieve this purpose, the tag clipping device of the present invention has the following configuration. The note clip is composed of a cardboard body board and a mounting bracket. The through hole of the body board and the hole of the mounting bracket communicate with each other, and the tip end of a pin shaft inserted into the communication hole is swaged on the back side of the body board. The main body board and the mounting bracket are fixed to each other, and the through hole of the main body board has a large diameter portion whose diameter from the virtual center of the hole is larger than the diameter of the pin shaft caulking portion, and a pin shaft caulking portion diameter. And a small-diameter portion smaller than the small-diameter portion.

The through hole provided in the board body may be, for example, one in which the three apexes have a constant width and have a substantially triangular planar shape. In this case, the diameter (distance / length) from the virtual center of the through hole to each apex is set to be larger than the diameter of the circular caulked portion (outer peripheral edge) of the pin shaft, and (from each virtual center) The diameter up to the center of each of the three sides (between the tops) is set smaller than the diameter of the circular swaged portion.

Therefore, a portion corresponding to the large diameter portion of the circular caulked portion of the pin shaft is located corresponding to the hole space and cannot be overlapped (joined) on the back surface of the main body. The portion corresponding to the small-diameter portion of the circular caulked portion of the pin shaft has the outer periphery of the caulked portion superimposed (joined) on the back surface of the board body and locked.

That is, in the relationship between the caulking portion and the through hole, three portions of the caulking portion overlap (lock) on the back surface of the board body, and the other three portions are located in the space and overlap (lock) on the board body. Not. Therefore, as the area required for destruction when the metal fittings are separated is set small, the destruction work can be easily realized with a small destructive force.

[0014]

[Embodiment of the invention]

 Hereinafter, specific embodiments of the tag clipping device according to the present invention will be described with reference to the drawings.

FIG. 1 is a cross-sectional view showing a tag clip of the embodiment, and FIG. 2 is an exploded perspective view showing a main part. The note clip includes a cardboard body board 1 and a mounting bracket 2. As shown in FIG. 2, the main body board 1 is a hard plate having a certain thickness (for example, having a thickness of 4 mm) made of waste paper as a core material, and the surface thereof is subjected to a paper cloth lining. As shown in FIG. 2, two through holes 11, which will be described later, are provided at regular intervals in the upper portion of the main body board 1.

The mounting bracket 2 is made of metal and includes a flat mounting plate 21 and a spring sandwiching bar 22. At the center on the back side of the metal flat plate (mounting plate) 21, a hanging bracket 24 is provided. Further, two small-diameter holes (circular holes) 23, 23 are provided at regular intervals in the plane of the metal flat plate 21. When the metal flat plate 21 is superimposed on the surface 1a of the main board 1, the small-diameter holes 23 communicate with the through holes 11 described later.

The pin shaft 3 is inserted into the communicating small hole 23 and the through hole 11 from above the metal flat plate 21, and the tip 33 of the pin shaft 3 is caulked on the back surface 1 b side of the main board 1. The pin shaft tip 33 has a slit 34 formed therein, and the tip 33 expands outward in a disk shape by pressing force, that is, a circular caulked portion 33a. Thereby, the main body board 1 and the mounting bracket 2 are fixed (see FIG. 1).

FIG. 3, FIG. 4, FIG. 5, and FIG. 6 are explanatory diagrams of main parts showing examples of patterns of the through holes 11. 1 and 2 show an example using the through hole 11 shown in FIG. The through hole 11 has a large diameter portion 11a whose diameter from the virtual center Y of the hole is larger than the diameter of the circular caulked portion 33a, and a small diameter portion whose diameter from the virtual center Y is smaller than the diameter of the circular caulked portion 33a. 11b.

FIG. 3 shows a through-hole 11 whose top has a constant width and has a substantially triangular planar shape. The large diameter portion 11a is a portion corresponding to three apexes having a fixed width, and the diameter from the hole imaginary center Y is set to be larger than the outer diameter of the circular caulked portion 33a. Therefore, the portion of the caulked portion 33a corresponding to the large diameter portion 11a is located in the hole space and does not contact the back surface 1b of the main board 1 (see FIG. 1).

The small diameter portion 11b is a central portion of each of the three sides located between the three tops, and the diameter from the virtual hole center Y is set smaller than the outer diameter of the circular caulking portion 33a. Therefore, the portion of the caulked portion 33a corresponding to the small diameter portion 11b is overlapped (contacted) with the back surface 1b of the main board 1 and locked (see FIG. 1).

FIG. 4 shows an example of the through hole 11 having a rectangular planar shape. In this embodiment, the portion corresponding to the four tops is the large diameter portion 11a, and the center of the four sides is the small diameter portion 11b.

FIG. 5 shows a modification of the through hole 11 shown in FIG. This embodiment shows an example in which there are four tops, four large-diameter portions 11a and four small-diameter portions 11b. FIG. 6 shows a through-hole 11 having two tops formed in the vertical direction. In this embodiment, the large diameter portion 11a is arranged in the vertical direction, and the small diameter portion 11b is arranged in the left and right direction.

When the main body board 1 and the mounting bracket 2 of the tag clipping device having such a configuration are separated from each other, the front surface 1a of the board main body 1 and the metal plate 1 are made to correspond to the caulking portion (pin shaft 3) 33a. A sharp tip of a flathead screwdriver or the like is inserted into the joint gap with the flat plate 21 (not shown) to pry the joint gap.

As shown in the cross-sectional view of FIG. 1, the swaging portion 33a has a circular planar shape whose diameter is larger than the diameter of the pin shaft 3. On the other hand, the through hole 11 includes a large diameter portion 11a and a small diameter portion 11b. The caulking portion 33a overlaps with the back surface 1b of the board body 1 at the portion corresponding to the small diameter portion 11b, but is located in the space (hole) at the portion corresponding to the large diameter portion 11a and is in contact with the back surface 1b. Not facing

Therefore, when the joining gap is forcibly opened with the tip of the flathead screwdriver, the portion corresponding to the large diameter portion 11b of the caulking portion 33a is not caught at all and no resistance is generated. Therefore, it is only necessary to apply a prying force to only the portion corresponding to the small diameter portion 11b having resistance. That is, only the portion corresponding to the small-diameter portion 11b of the through hole 11 is broken, so that the metal fitting (caulking portion 33a) 2 and the main body board (through hole 11) 1 can be separated as shown in FIG.

[0026]

[Effects of the Invention] In the present invention, as described above, the through hole provided in the main body board surface has a large diameter portion whose diameter from the virtual hole center is larger than the diameter of the circular caulking portion, and a circular diameter from the virtual hole center. Since it is configured with a small diameter portion smaller than the caulked portion diameter, only a through hole needs to be opened in the plane of the main board. Therefore, it is unnecessary to provide a large number of cut lines in addition to the cylindrical hole (through hole) as in the related art, and the manufacturing process is easy and the product cost can be reduced because one working process can be omitted. obtain. In the circular caulked portion, only the portion corresponding to the small diameter portion of the through hole overlaps with the main body board, and the portion corresponding to the large diameter portion does not contact the main body board and is located in the hole space. Therefore, when separating the main board and the bracket, only the portion of the through-hole corresponding to the small diameter portion that overlaps with the main board needs to be broken, and the required breaking area is small. In addition, the present invention has an excellent effect of achieving the object of the invention, such that the swaged portion can be dropped from the through hole.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a tag clip of an embodiment.

FIG. 2 is an exploded perspective view showing the tag clip of the embodiment.

FIG. 3 is an enlarged explanatory view of a main part showing a through hole.

FIG. 4 is an enlarged explanatory view of a main part showing another embodiment of a through hole.

FIG. 5 is an enlarged explanatory view of a main part showing another embodiment of a through hole.

FIG. 6 is an enlarged explanatory view of a main part showing another embodiment of a through hole.

FIG. 7 is an explanatory view showing a state in which a through hole is broken and a metal fitting is removed from a board main body.

FIG. 8 is an enlarged sectional view showing a main part of a conventional tag clipping tool.

FIG. 9 is an enlarged explanatory view showing a through hole and a plurality of cut lines of a conventional tag clipping tool.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body board 2 Mounting bracket 3 Pin shaft 11 Through hole 23 Small diameter hole 31 Pin shaft head 32 Shaft 33 Shaft tip 34 Slit 1a Board surface 1b Board back 11a Large through hole 11b Small through hole 33a Circular caulking Part Y Hole virtual center

Claims (1)

[Utility model registration claims] 1. A main board made of cardboard and a mounting bracket, and a through hole of the main board communicates with a hole of the mounting bracket, and a tip end of a pin shaft inserted into the communication hole is swaged on the back side of the main board. In the tag clipping tool in which the main body board and the mounting bracket are fixed, the through hole of the main body board has a larger diameter portion whose diameter from the virtual center of the hole is larger than the diameter of the circular caulked portion of the pin shaft, and a larger diameter than the circular caulked portion. And a small diameter portion which is also small.