JPH0340630Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a clamping mechanism for memo paper, notepads, etc., which consists of a sheet of paper and a base plate.

(Prior art) Conventionally, for example, a synthetic resin thin plate A is separated into an edge and an inner surface by having grooves bored along three sides of its periphery, and an arbitrary number of convex parts are formed in the center of the inner surface. protruding,
A synthetic resin clip having the edge and inner surface for holding the piece of paper B is known from Japanese Utility Model Application Publication No. 51-129813.

(Problem that the invention aims to solve) However, with this structure, the convex protruding from the clip presses its head against the piece of paper held by the clip, causing the piece of paper to slip from the clip. Although the purpose is to prevent the head from coming off, there are problems such as the fact that the head simply presses against it and it is impossible to fully demonstrate this preventive effect. Ta.

(Means for Solving the Problems) The present invention consists of a sheet of paper to be pinched with an insertion hole on the side, and a hard plastic board with elasticity that is larger in size than the sheet of paper. A U-shaped, U-shaped, or discontinuous annular cut line is inserted, and the area surrounded by the cut line is used as a pinching part, and the paper sheets to be pinched are placed on both sides of the pinching part on the top surface. The present invention attempts to solve these problems by providing a paper sheet clamping mechanism characterized by comprising a base plate having a protrusion that fits into a provided insertion hole.

(Embodiment) The first embodiment shown in FIGS. 1 to 3 is a base plate 1 made of an elastic hard plastic plate.
A paper clip main part 4 is provided with a U-shaped cut line 2 inserted near the upper side, and the part surrounded by the cut line 2 is used as a pinch stop part 3. A pair of short column-shaped protrusions 5 that fit into insertion holes A' provided in the sheet to be pinched are integrally provided on both outer sides, and a second embodiment shown in FIGS. 4 and 5 has the same structure as the above-mentioned first embodiment, but the top surface of the protrusion 5 is cut obliquely. The third embodiment shown in FIGS. 6 and 7 is different from the above-mentioned first embodiment. With a similar configuration, the pinching part 3
A finger rest part 6 is provided adjacent to the finger rest part 6, and when a pressing operation is applied to this finger rest part 6, the pinch stop part 3 is opened. The embodiment has the same structure as the first embodiment described above, except that a hook edge 7 is provided at the tip of the protrusion 5, and only the paper clip main portion 4 is provided at a location near the lower side of the base plate 1. In the fifth embodiment shown in FIG. 10, the cover 9 of the binder 8 is used as a base plate 1, and the base plate 1 is provided with the above-mentioned paper clip main portion 4 and projections 5, as shown in FIG. In the sixth embodiment, an underlay 10 with ruled lines 10' is used as a base plate 1, and a paper clip main portion 4 and a protrusion 5 are provided on this base plate 1. When writing by copying the ruled lines 10' of the underlay 10 onto the same sheet of paper 12 by placing it on the back of the same sheet of paper 12, the sheet 1 is
It is used for uses such as clamping the edges of sheets 12 and inserting protrusions 5 into insertion holes 12' provided in the sheet 12 to prevent the above-mentioned printing ruled lines from moving, as shown in FIG. 12. The seventh embodiment is a combination of the above-mentioned third embodiment, the sixth embodiment, and a pair of clamping portions 3, 3 in which a protrusion 5 is provided on the lower surface.

(Function) In contrast to the conventional structure described above, which clamps paper pieces only by the clamping force between the edge and inner surface, a thin synthetic resin plate A with relatively strong elasticity is required. Therefore, it is sufficient for the clamping part 3 in the paper clamping mechanism according to the present invention to suppress the paper leaf fitted into the protrusions 5 on both sides to such an extent that the paper leaf does not slip out from the protrusions. The constituting hard plastic plate material may be one with weak elasticity.

Therefore, when opening the pinching portion when inserting or removing the sheet insertion hole into the protrusion 5, it is sufficient to use a force that resists the above-mentioned weak elasticity.

(Effect of the invention) The paper sheet clamping mechanism according to the present invention has the above-described configuration, so that when the paper sheet is clamped, the insertion hole opened in the paper sheet is fitted into the protrusion, and then the paper sheet is not clamped. All you have to do is to clamp the edge of the paper with the clamping part, and if you do this, the paper sheet to be clamped will be prevented from slipping out of the clamping part by the fitting of the insertion hole and the protrusion, so it is better than the above-mentioned known method. In addition, according to the present invention, after fitting the insertion hole formed in the paper sheet to the protrusion, the edge of the sheet can be held with the pinching part. In this way, the paper sheet to be clamped is prevented from coming out of the clamping part by the fitting of the insertion hole and the protrusion, so that the clamping of the paper sheet is easier than in the above-mentioned known method. In addition, according to the present invention, after fitting the insertion hole made in the paper sheet to the protrusion, the edge of the sheet is clamped using the clamping part, or the edge of the paper is clamped. To provide a product that can pinch a paper sheet by removing the paper sheet from the protrusion after releasing the jam, and to release the pinching with a small force that resists the weak elasticity mentioned above, and It is advantageous to be able to provide products made of weak hard plastic plates, and in addition, protrusions are provided on both sides of the clamping part on the top surface of the base plate to prevent the product from coming off, so that the product cannot be clamped by the clamping part. Not only does it keep the paper sheets in an orderly manner without causing any unsightly sliding, but the base plate is larger than the paper sheets to be clamped, so that the paper sheets are This is advantageous for writing and writing on pinched sheets of paper, and in the present invention, the pinching portions are designed to prevent the paper sheets fitted into the protrusions 5 on both sides from slipping out from the protrusions 5 on both sides, as described above. Since it is sufficient to suppress the paper sheet, there is no need to intentionally provide strong elasticity, and there is no need to make the surface area large. It has certain practical effects.

[Brief explanation of drawings]

The drawings show an embodiment of the paper sheet clamping mechanism of the present invention, in which Fig. 1 is a perspective view showing the entire first embodiment, and Fig. 2 is a sectional view taken along the line A-A in Fig. 1. , 3rd
The figure is a cross-sectional view taken along line A'-A' in Figure 1, Figure 4 is a perspective view showing the entire second embodiment, and Figure 5 is a cross-sectional view taken along line B-B in Figure 4. , FIG. 6 is a perspective view showing the entirety of the third embodiment, FIG. 7 is a sectional view taken along the line C-C in FIG. 6, FIG. 8 is a perspective view showing the entirety of the fourth embodiment, and FIG. 9 is a sectional view taken along line D-D in FIG.
FIG. 10 is a perspective view showing the whole of the fifth embodiment;
FIG. 1 is a perspective view showing the whole of the sixth embodiment, and FIG. 12 is a perspective view showing the whole of the seventh embodiment. 1... Base plate, 2... Cutting line, 3... Pinching part,
4...Paper clipping main part, A...Paper sheet to be pinched, A'...Insertion hole, 5...Protrusion, 6...Finger rest part, 7...Hooking edge, 8...Binder, 9... Cover, 10... bottom, 10'... ruled line, 11... letter paper, 12... leaf, 12'... insertion hole.

Claims (1)

[Scope of utility model registration request] It consists of a sheet of paper to be clamped with an insertion hole on the side, and a hard elastic plastic plate larger than the sheet, with cut lines in a U-shape, U-shape, or discontinuous ring shape at the required places. and the part surrounded by the cut line is a clamping part, and the base plate is provided with protrusions on both outer sides of the clamping part on the upper surface that fit into the insertion holes provided in the paper sheets to be clamped. A paper leaf clamping mechanism characterized by comprising: