JP4424627B1 - Paper cutting aid - Google Patents

Abstract

The present invention relates to an auxiliary tool that can be used for manufacturing cut paper, origami, and Hawaiian quilt paper patterns, making it possible to easily and accurately perform a folding operation of six folds and ten folds.
A folding line of a 60 degree angle and a folding line of an angle of 72 degrees, which are necessary for the folding operation of 6 folds and 10 folds used for the production of cut paper, origami, and Hawaiian quilt pattern, respectively, It was possible to make a crease easily and accurately using a plate folded in half.
[Selection] Figure 3

Description

  The present invention relates to an auxiliary tool for easily and accurately folding a folding work of cutting paper, origami, and Hawaiian quilt pattern production.

  A continuous pattern is created when the paper is folded. The paper cutting technique has been known for a long time. Flowers and snowflakes are known as typical designs. Hawaiian quilt patterns may also be made using the cutting paper technique.

JP 2001-138691 A JP 2006-224642 A JP 2009-23746 A

Kirigami exercise book that can be made as it is Mayumi Ohara P92-P95

  The position of the fold line that becomes the base point when folding the cut paper or origami into 6 folds (6 equal to 60 degrees from the center of the square paper) and 10 folds (10 equal to 36 degrees from the center of the square paper) It is easy to slip. 6 folds and 10 folds are difficult for those who are not familiar with them, and may not be able to reach a proper completion. The cause of the deviation is that an error occurs while the paper is bent many times at the base position to derive the point. In addition, there are many extra folds during this process. Whether or not the broken line that is the base point is misaligned is difficult to understand when the point is derived and cannot be judged unless it is folded. If you fold the paper over and over again, you may fail and waste the paper. The same can be said for 6 folds and 10 folds, and 12 folds and 20 folds, each of which is further folded in half. In the conventional tri-folding aid used for letters and the like, the paper cannot be bent at an angle from the center of the paper, and the folding angle is limited to 90 degrees. Not available.

The present invention is an auxiliary tool for folding a folded paper or an origami paper into six and ten folds, and is made of a plate that can be folded back, and has a form that is folded into two in a straight line. Once the plate is opened, a straight side formed by folding the valley-folded surface is defined as a folding side, and the bent side is directed left and right toward the person using the cutting aid. The upper surface corresponding to the bent side is a bending angle portion, the lower surface corresponding to the bent side is a pedestal portion, and the folded side of the folded side is defined as A thin-walled portion is formed along the back side, and the folding angle portion can be folded back at the thin-walled portion, and the folding angle portion is angled from the folding side on the cutting paper assisting tool with respect to either the left or right end of the folding side. 6 One side of the pedestal portion is at an angle of 90 degrees with respect to the end where the one side that forms an angle of 60 degrees or 72 degrees is used as the bending reference end, and the bending reference end of the bending angle portion of the bending side touches. The side of the triangle is used as the base end of the pedestal, and the bottom of the triangular paper folded in a diagonal line is aligned with the bent side of the open cutting aid. Place the apex of the paper on the base end of the pedestal, hold down the triangular paper set in a shape that folds the folding angle part forward, and at the same time bring the triangular paper forward along the folding reference edge of the folding angle part A cutting paper assisting tool that shows a fold line at an angle of 60 degrees or 72 degrees that reaches the center point of the base of the triangular paper by bending the paper into two.
According to a second aspect of the present invention, the folding side is formed with thin portions on both the front surface and the back surface, and the bending angle portion can be folded on both the front surface and the back surface of the cutting aid. Cut paper aids. According to a third aspect of the present invention, the bent side is bent into a substantially U-shaped cross section at a position where the bent side hits the bent side with a gap between the bent angle portion and the pedestal portion being inserted into the triangle. The cutting aid according to claim 1, further comprising a substantially U-shaped bent portion.
According to a fourth aspect of the present invention, the cutting aid has both sides of the folding side having two sides that are at an angle of 60 degrees or 72 degrees from the folding side on the cutting aid. 2. The cutting aid according to claim 1, wherein two sides of the pedestal portion form an angle of 90 degrees with respect to both ends of the bent side, and two pedestal portion reference ends are required. . 5. The cutting device according to claim 4, wherein the folding side is formed with thin portions on both the front surface and the back surface, and the bending angle portion can be folded on both the front surface and the back surface of the cutting paper auxiliary tool. Paper aid. According to a sixth aspect of the present invention, the bent side is bent into a substantially U-shaped cross section at a position where the bent side hits the bent side with a gap between the bent angle portion and the pedestal portion into which the paper folded in half is inserted. The cutting aid according to claim 4, further comprising a substantially U-shaped bent portion.

The material for the cutting aids according to claim 1, claim 2, claim 4 and claim 5 is made of a plate that can be folded back and has excellent bending fatigue resistance. An example thereof is polypropylene.
The cutting aids of claim 3 and claim 6 are preferably a resin plate or a metal plate suitable for a substantially U-shaped bending process, and examples thereof include methacryl, acryl, and stainless steel.

In the present invention, the base of the triangular paper obtained by folding the square paper into two diagonal lines is brought into close contact with the folding side of the cutting aid, and at the same time, the apex of the triangular paper is aligned with the pedestal reference end, so that the center of the paper can be accurately measured. The folds necessary for the 6-fold and 10-fold can be folded accurately and easily. Naturally, it can be developed into 12 folds and 20 folds.
In addition, since the paper is folded while being pressed at the bending angle portion, the paper does not sag and shift. You can make cut paper, origami, and Hawaiian quilt patterns accurately and easily without adding extra lines to the folded paper. In addition, since the folding aid of the second and fifth aspects can be bent both on the front and back with respect to the pedestal, the person who uses the cutting aid selects a position where the user can easily fold the paper. Can be used.

1 is a plan view showing an embodiment of the present invention. 1 is a plan view showing an embodiment of the present invention. 1 is a plan view showing an embodiment of the present invention. 1 is a plan view showing an embodiment of the present invention. It is a development view showing an embodiment of the present invention. It is a development view showing an embodiment of the present invention. It is a development view showing an embodiment of the present invention. It is a development view showing an embodiment of the present invention. 1 is a side view showing an embodiment of the present invention. 1 is a side view showing an embodiment of the present invention. 1 is a side view showing an embodiment of the present invention. It is a figure which shows the folding method by the cutting paper auxiliary tool concerning-embodiment of this invention.

  Hereinafter, an embodiment of the present invention will be described with reference to FIGS. FIG. 1 shows a plan view of the cutting aid 1- (a) according to claim 1 and the cutting aid 1- (b) according to claim 2, and FIG. 2 shows the cutting aid 1- ( FIG. 3 shows a plan view of the cutting aid 1- (d) of claim 4 and a cutting aid 1- (e) of claim 5, and FIG. 6 shows a plan view of the cutting aid 1- (f), FIG. 5 shows a developed view of the cutting aid 1- (a) of claim 1, and FIG. 6 shows the cutting aid of claim 2. Fig. 7 shows a development view of 1- (b), Fig. 7 shows a development view of the cutting aid 1- (d) of claim 4, and Fig. 8 shows a cutting aid 1- (e) of claim 5. FIG. 9 shows a side view of the cutting aid 1- (a) of claim 1 and the cutting aid 1- (d) of claim 4 in FIG. FIG. 11 is a side view of the cutting aid 1- (b) according to claim 2 and the cutting aid 1- (e) according to claim 5, and the cutting aid 1- (c) according to claim 3 in FIG. FIG. 12 is a side view of the cutting paper assisting tool and 1- (f) of FIG. 6, and FIG. 12 shows a drawing showing a folding procedure by the cutting paper assisting tool according to the embodiment of the present invention. Reference numerals 1- (a), 1- (b), 1- (c), 1- (d), 1- (e), 1- (f) denote cutting aids according to the present embodiment. In the figure, a fold line necessary for folding a square paper into two diagonally folded into six and folding into ten is easily and accurately creased.

  Next, a triangular paper P formed by folding a square paper into two diagonal lines using the folding reference end angle 60 degrees 4 of the cutting aid 1- (d) according to the present embodiment configured as described above. The folding method of the broken line L, which is the base point when folding in six, will be described with reference to FIG.

  First, the cut paper auxiliary tool 1- (d) is placed in an open state on a desk or the like, and the bottom side of the triangular paper P obtained by folding the square paper into two diagonal lines on the folding side 2 as shown in FIG. Are aligned as shown in the figure, and the apex of the triangular paper P is aligned with the pedestal reference end right 7 of the pedestal 6.

  Next, as shown in FIG. 12B, the bending angle portion 3 is closed to the front.

  Next, as shown in FIG. 12 (c), the triangular paper P formed by folding the square paper into two diagonal lines is folded forward along the folding reference end angle 60 degrees 4 of the folding angle portion 3 while holding the folding angle portion 3. A broken line necessary for six-folding is marked. When folding 10 folds, a reference end with an angle of 72 degrees may be set with respect to the end of the bent side. In FIG. 12, the folding reference end angle 72 degrees 5 of the cut paper auxiliary tool 1- (d) has this role.

  Next, as shown in FIG. 12 (d), when the triangular paper P folded diagonally from the folded square paper is pulled out from the cut paper auxiliary tool 1- (b), it becomes a base point necessary for folding six folds. The polygonal line L is shown correctly.

This will be described with reference to FIGS. 3, 7, 9, and 12. The cut paper auxiliary tool of the invention has a length of 15 cm, a width of 15 cm and a plate thickness of 0.5 mm. However, this size is just an example. When a large sheet is folded, the size may be increased, and when a small sheet is folded, the size may be decreased. The material is made of a plate that can be folded back and has excellent bending fatigue properties. An example of this is polypropylene. In addition, the shape of the folding angle part and the pedestal part is free as long as it does not impair the function of the cutting aid. For example, the side that is not the bending reference end of the folding angle part is slightly protruded from the pedestal part or on the pedestal part. By providing it inside, it is possible to easily open and close the bent angle portion. The same effect can be obtained even if a constricted portion is provided in a portion overlapping the guide portion on the side that is not the reference end of the pedestal portion. In addition, the reference end of the bending angle portion is more easily bent when the angle is finished obliquely as seen on a ruler.
In addition, as an example of the material for the cutting aid of Claims 3 and 6, a resin plate or a metal plate suitable for a substantially U-shaped bending process is preferable, and examples thereof include methacryl, acrylic, and stainless steel. .

It can be used for reliable production of cut paper, origami, and Hawaiian quilt patterns and shortening of production time.

1- (a) Cutting paper auxiliary tool 1- (b) Cutting paper auxiliary tool 1- (c) Cutting paper auxiliary tool 1- (d) Cutting paper auxiliary tool 1- (e) Cutting paper auxiliary tool 1- (f) Cut paper aids 1. 2. Folded side Bending angle part 4. Bending reference end angle 60 degrees 5. Bending reference end angle 72 degrees 6. Base part 7. Base reference end right 8. Pedestal reference end left 9. Thin part 10. U-shaped bent part Triangle paper with square paper folded diagonally
L. A polygonal line that is the base point when folding in six

Claims (6)

    Auxiliary tool for folding cut paper and origami into 6 and 10 folds, which consists of a plate that can be folded back, has a form that is folded back into two in a straight line, and once the plate is opened In addition, the straight side formed by folding the valley-folded surface is the bent side, and the bent side is left, right, up, down, left and right toward the person who uses the cutting aid. The upper surface corresponding to the bent side is defined as a bending angle portion, the lower surface corresponding to the bent side is defined as a pedestal portion, and a thin portion is formed along the back side of the folded bent side. The folding angle portion can be folded back at the thin wall portion, and the folding angle portion can be either 60 degrees or 72 degrees from the folding side on the cutting paper auxiliary tool with respect to either the left or right end of the folding side. With one side forming the angle, this one side as the bending reference end, and further, the side where the one side of the pedestal portion forms an angle of 90 degrees with respect to the end where the bending reference end of the bending angle portion of the bending side contacts, With this one side as the pedestal portion reference end, the folding paper auxiliary tool in the opened state is aligned with the folded side of the triangular paper that is folded in half from the square paper, and at the same time the apex of the triangular paper is the pedestal portion By setting the paper in accordance with the reference end and pressing the triangular paper that is installed in a shape that folds the folding angle part forward, the paper is folded forward along the folding reference edge of the folding angle part, A cutting aid, characterized by showing a polygonal line with an angle of 60 degrees or 72 degrees reaching the center of the base of the triangle paper.     2. The cutting aid according to claim 1, wherein the folding side is formed with thin portions on both the front and back surfaces, and the folding angle portion is foldable on both the front and back surfaces of the cutting aid. .     The bent side is a substantially U-shaped section that is bent into a substantially U-shaped cross section at a position where the bent side hits the bent side with a gap between the bent angle part and the pedestal part into which the paper folded in half is inserted. The cutting paper auxiliary tool according to claim 1, further comprising a bent portion.     The cutting paper assisting tool has two sides at either end of the folding edge on the folding paper assisting tool, each of which has an angle of 60 degrees or 72 degrees, and these two sides serve as a bending reference end. 2. The cutting aid according to claim 1, wherein two sides of the pedestal portion form an angle of 90 degrees with respect to both ends of the bent side, and two pedestal portion reference ends are required.     5. The cutting paper assisting tool according to claim 4, wherein the folding side is formed with thin portions on both the front surface and the back surface, and the folding angle part can be folded on both the front surface and the back surface of the cutting paper assisting device.     The bent side is a substantially U-shape that is bent into a substantially U-shaped cross section at a position where the bent side hits the bent side with a gap between the bent angle part and the pedestal part being inserted into the triangle. The cutting paper auxiliary tool according to claim 4 having a bent portion.

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