JPS6027018Y2 - Paper corner presser - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a paper corner presser useful for securing drafting paper, posters, etc.

Conventionally, papers such as drafting paper and posters are fixed to the board surface using push pins or registered trademark pieces, but the fixed part is small and may tear and come off due to a slight external force. There were drawbacks such as paper corners being easily damaged.

The purpose of this invention is to eliminate the above-mentioned drawbacks.

That is, this invention is a paper corner presser that can securely clamp and fix the corners of paper between a flexible substrate fixed to a predetermined board surface and a presser plate spring having an arcuate cross section. be.

Hereinafter, embodiments of this invention will be described based on the accompanying drawings.

As shown in FIGS. 1 and 2, the paper corner presser of this invention has a right triangular substrate 1 made of a flexible sheet such as soft plastic or paperboard, and a corner presser that is placed overlapping the oblique side of the substrate 1. It consists of an isosceles trapezoidal presser plate spring 2 with legs and a slightly curved arc cross section at both ends, and this presser plate spring 2 is made of a covering sheet 3 made of the same material as the base material 1
Both oblique edges of the substrate 1 and both leg edges of the covering sheet 3 are integrally joined to provide a gap 4 for paper insertion in the center, and a right-angled top portion of the substrate 1 is cut out to form a paper corner. An outlet 5 is formed therein.

The substrate 1 may be provided with an adhesive layer (not shown) covered with a release paper over the entire lower surface.

When the presser plate spring 2 presses both warped ends, it easily becomes a flat plate, and the paper inserted between the plate spring 2 and the substrate 1 is held relatively strongly, especially at the center, due to its restoring elasticity.

Note that the thickness and the curvature of the arc-shaped cross section of the presser plate spring 2 can be appropriately selected depending on the application.

When the covering sheet 3 is made of soft plastic together with the substrate 1, it can be melt-bonded to the substrate 1 by heat setting.

The paper corner presser according to this invention has the above-mentioned structure, and when using it, the paper corner presser is as shown in Figs. 3 and 4.
As shown in the figure, the corner of paper 11 such as drafting paper or a poster is inserted into the gap 4, and the tip 12 protrudes into the outlet 5.
Fold it downward so that the presser plate spring 2 becomes a flat plate.
A substrate 1 is relatively firmly fixed to the four corners of a drawing board or a display board.

At this time, if the substrate 1 has an adhesive layer on the bottom surface, peel off the release paper covering it and press it firmly against the board surface to adhere it, or if it does not have an adhesive layer, apply an adhesive and adhere it, and apply magnetic force. If the display board has the above, it will be magnetically attracted by the iron presser plate spring 2 simply by making contact with it.

Note that when displaying a poster or the like, it is effective to fold the tip portion 12 protruding from the exit 5 as described above, but in the case of drafting paper or the like, folding may be omitted.

Furthermore, in the case of thin and flexible paper, a drawing jig (not shown) consisting of a long and thin plate folded in half may be inserted through the outlet 5, the corner of the paper may be held by this jig, and the paper may be pulled out. This allows the corner presser to be easily attached to the paper.

As mentioned above, according to the paper corner presser of this invention, the paper inserted through it is held relatively strongly by the restoring elasticity of the substrate and the presser plate spring, and because the substrate is wide, there is no pressure on the board surface. It is securely fastened, and it is easy to attach and remove paper without damaging the corners of the paper. Also, when using drawing paper at the four corners of the drawing board, it is easy to slide a T-shaped ruler etc. onto the paper. It has the advantage that it does not shift at all, making it particularly useful.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing an embodiment of this invention, Fig. 2 is a longitudinal cross-sectional side view taken along line I-I in Fig. 1, Fig. 3 is a plan view showing the above in use, and Fig. 4. 3 is a longitudinal cross-sectional side view taken along the line ■-■ in FIG. 3. 1... Board, 2... Presser plate spring, 3.
...Covering sheet, 4...Gap for paper insertion, 5...Exit for paper corner, 11...
Paper.

Claims (1)

[Scope of utility model registration request] On the top surface of a right triangular substrate made of a flexible sheet such as soft plastic or paperboard, a presser plate spring having approximately the same shape as the substrate and having both ends curved upward is superimposed, and both plate materials are held together by both oblique edges. A paper corner presser that is integrally joined to provide a gap for paper insertion in the center, and has a right-angled top section cut out to form a paper corner outlet.