JP3112520U - Paper folding machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a possibility that a position of a fold is shifted while making all folds clear to some extent in a paper folding device using a rotating plate-like body.
As a paper folding device, a reference plate made of a rectangular plate-like body, and a sheet body or plate-like body having substantially the same shape and size as the reference plate, in the longitudinal direction of the reference plate A first rotation plate having a peripheral edge pivotably fixed to one edge along which a hole or notch for inserting a finger is provided, and substantially the same shape and size as the reference plate, and in the longitudinal direction Both edge portions forming the plate are plate-like bodies, and the gap between the two edge portions is formed by a sheet body or plate-like body, on one edge not connected to the reference plate along the longitudinal direction of the first rotating plate. A second rotating plate whose edge is rotatably fixed, and a rectangular plate-like body having substantially the same length as the reference plate, the first rotation along the longitudinal direction of the reference plate A third rotating plate that is rotatably fixed to one edge to which the plates are connected is provided.
[Selection] Figure 1

Description

  The present invention relates to an instrument for making a predetermined crease in paper.

The work of folding a drafting sheet or the like into a predetermined shape requires skill and labor. There is also a machine that automatically folds paper, but it is expensive and is not profitable unless a large amount of paper is folded. As a method for solving such a problem, in Patent Documents 1 and 2 below, a plurality of plate-like members are connected rotatably, a paper is placed on the plate-like member, and the plate-like member is turned to fold the paper. The way to go is shown. In the method described in Patent Document 1, paper is placed on a plurality of plate-like bodies that are connected in parallel, and the paper is sandwiched between two plate-like bodies at the end, and in this state, the paper is placed on the plate-like body. The paper is creased by being caught while being sandwiched. In the method described in Patent Document 2, a plate-like body is rotatably provided at the edge of a reference plate-like body, and paper is placed on the plate-like body so that another plate-like shape faces the reference plate-like body. The paper is creased by folding the body with the paper.
JP-A-10-129925 Japanese Patent Laid-Open No. 10-129924

In the method described in Patent Document 1, in order to wind a plate-like body, the paper located at the rear side is bent with two or more plate-like bodies sandwiched therebetween. However, since a certain amount of thickness is required to increase the strength of the plate-like body, if two or more plate-like bodies are sandwiched in this way, the paper will sandwich a considerable thickness and the crease will be clear. There is a problem that can not be attached. The method shown in Patent Document 2 is a method of folding paper inward of the plate-like body, and the crease can be clearly made. However, when folding, the paper is likely to move and the crease is likely to shift.
In view of such a problem, an object of the present invention is to reduce the possibility that the position of a fold is shifted while making all the folds clear to some extent in a paper folding device using a rotating plate-like body.

In order to solve the above problems, the present invention has the following configuration.
The invention according to claim 1 is formed by a reference plate made of a rectangular plate-like body, and a sheet body or plate-like body having substantially the same shape and size as the reference plate, and in the longitudinal direction of the reference plate. A first rotating body that is pivotally fixed to one edge along which a hole or a notch is provided for inserting a finger, and has substantially the same shape and size as the reference plate, and at least a long side Both edge portions constituting the plate are plate-like bodies, and the gap between the two edge portions is formed by a sheet body or plate-like body, and the edge is not connected to the reference plate along the longitudinal direction of the first rotating body. A second rotating body whose edge is rotatably fixed, and a rectangular plate-like body having substantially the same length as the reference plate, wherein the first rotating body along the longitudinal direction of the reference plate is connected A paper folding device having a third rotating body that is rotatably fixed to one edge of the edge.
With such a configuration, the edge of the paper to be folded is pressed against the connecting portion between the reference plate and the first rotating body, and the paper is pressed against the reference plate by inserting a finger from the hole or notch of the first rotating body. In this state, the first rotating body is tilted to one surface of the reference plate, the second rotating body is further tilted to the other surface of the reference plate, and then the third rotating body is tilted to the second rotating body side. Fold.
According to a second aspect of the present invention, in the paper folding device, the first rotating body is formed of a transparent material.
According to a third aspect of the present invention, in the paper folding device, one of the reference plate, the first rotating body, and the second rotating body is formed of a transparent material, and is formed on any main surface. A reference scale is written perpendicularly to the longitudinal direction.
According to a fourth aspect of the present invention, in the paper folding device, a notch is formed at the same position on each short side that overlaps when the reference plate, the first rotating body, and the second rotating body are folded. The corners which are present on the short side of the reference plate and the second rotating body facing the short side and are not connected to other edges are rounded.

According to the first aspect of the present invention, since the paper fold is always folded so as to sandwich only one reference plate or rotating plate, a relatively fold can be obtained relatively clearly. Since it folds on the edge part of a board, possibility that a crease will shift can be made low.
According to the second aspect of the present invention, since the first rotating body is formed of a transparent material, it is possible to visually confirm that the position of the first paper is in the correct position. Can be folded.
According to a third aspect of the present invention, one of the reference plate, the first rotating body, and the second rotating body is formed of a transparent material, and the main surface is perpendicular to the longitudinal direction. By marking the scale that becomes, the edge that constitutes the short side of the paper can be aligned with the position of the scale on the scale written across the paper folded in strips with the transparent plate member as the front In addition, by folding along the edge of the reference plate or the rotation plate, it is possible to fold the paper folded in a strip shape at a predetermined position in the longitudinal direction.
According to the fourth aspect of the present invention, the paper folded from the cutout portion can be held and pulled out by hand. In addition, the corners on the edges that are not connected to the other edges of the short side hit the folds of the paper, but the corners are rounded, so when pulling out the paper, the paper will be cut at the crease part. Can be prevented.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a perspective view of a paper folding device X according to this embodiment. The paper folding device includes a reference plate 10, a first rotating body 20, a second rotating body 30, and a third rotating body 40.
The reference plate 10 is made of a transparent rectangular plate made of polyethylene terephthalate and has a thickness of about 0.5 mm. The shape of the reference plate 10 is determined by the size and folding method of the paper to be folded. Further, a U-shaped notch 11 is formed at one edge forming the short side of the reference plate 10, and one corner 12 of the short side facing the short side is formed round.
The first rotating body 20 is a sheet body having the same size and shape as the reference plate 10 and is formed of polypropylene. One edge portion along the longitudinal direction of the first rotating body 20 is rotatably fixed to one edge without the corner portion 12 along the longitudinal direction of the reference plate 10. Here, as a method for fixing the first rotating body 20 and the reference plate 10, the polypropylene sheet forming the first rotating plate 20 is extended from the edge for fixing and bent to the reference plate 10 side. The double-sided tape is adhesively fixed to the reference plate 10. The reference plate 10 and the first rotating body are rotatably fixed to each other by the bent portion. In addition, a hole 22 for passing a finger is provided in an edge portion connected to the reference plate 10 in the center of the first rotating body 20. Furthermore, a plurality of scales perpendicular to the longitudinal direction are displayed on the surface of the first rotating body 20 by printing. This scale has a meaningful length such that the distance from the scale drawn by the thick line at the center to the edge perpendicular to the longitudinal direction, which is far from the scale, is half the length of the short side of a specific paper. Is set to The remaining thin graduations indicate errors of 5 mm from the central thick graduations. Further, when the first rotating body 20 is folded so as to overlap the reference plate 10, a notch 24 having the same shape is formed in a portion overlapping the notch 11 formed on the short side of the reference plate 10. .

The second rotating body 30 is a plate-like body having substantially the same size and shape as the reference plate 10, and is rotated around an edge that forms the longer side that is not connected to the reference plate 10 of the first rotating body 20. Connected freely. The first rotating body 20 and the second rotating body 30 are connected by extending from the edge connecting the polypropylene sheets forming the first rotating body and bonding and fixing the extended portion to the second rotating body 30 with a double-sided tape. Is done. Thereby, the 1st rotation body 20 and the 2nd rotation body 30 are fixed so that rotation is mutually possible. The second rotating body 30 has a notch formed on the short side of the reference plate 10 when the first rotating body 20 is overlapped with the reference plate 10 and further folded when the second rotating body is overlapped with the reference plate 10. 11 is formed with a notch 31 having the same shape. In addition, a corner 32 that is not connected to the first rotating plate 20 on the short side facing the short side on which the notch 31 of the second rotating plate 30 is formed is formed in a round shape.
The third rotating body 40 is a rectangular plate-like body having the same length and thickness as the reference plate 10 and having a width that is one third of the reference plate 10, and is formed of the same material as the reference plate 10. One edge portion along the longitudinal direction of the third rotating body 40 is rotatably fixed to one edge to which the first rotating body 20 of the reference plate 10 is connected. Here, as a method for fixing the third rotating body 40 and the reference plate 10, a polypropylene belt-like sheet having the same length as the reference plate 10 is folded in two at the folds in the longitudinal direction, and each surface is referred to as the reference plate 10. It is fixed by adhering to the third rotating plate 40 with double-sided tape. Thereby, the 3rd rotation body 40 and the reference | standard board 10 are fixed mutually rotatably.

  Next, a method of using the paper folding device X having the above configuration will be described. First, one of the functions of the paper folding device X is to fold paper into a Z-shape in cross-sectional view. A procedure for folding the paper in a Z-shape in cross section by the paper folding device X will be described with reference to FIG. In FIG. 2, a gap between the paper P and the paper folding device X is opened for easy viewing, but there is actually no gap. First, as shown in FIG. 2A, the user brings the edge of the paper indicated by the two-dot chain line P into contact with the boundary between the reference plate 10 of the paper folding device X and the first rotating body 20. Then, the paper is firmly fixed from the hole 22 of the first rotating body 20 through the thumb. Next, as shown in FIG. 2 (b), the first rotating body 20 is tilted toward the upper surface side of the reference plate 10 to sandwich the paper P. Then, as shown in FIG. 2C, the second rotating body 30 is rotated to the back side of the reference plate 10 while the paper P is wound. Then, as shown in FIG. 2D, the work is completed by tilting the third rotating body 40 toward the second rotating body 30 while winding the paper P.

Another function of the paper folding device X is a function of folding the folded paper into a predetermined position and further folding it in the longitudinal direction. First, as shown in FIG. 3, the paper P folded in a strip shape is sandwiched between the reference plate 10 and the first rotating body 20 tilted to the reference plate 10 side. The second rotating body 30 and the third rotating body 40 are folded back. Then, the shorter edge of the paper P is aligned with the scale 23. Here, when matched with the thick line at the center, the center in the longitudinal direction of the paper P folded in a strip shape is positioned at the upper edge of the first rotating body 1 in FIG. In this state, the paper folded into a strip shape by folding the paper P while pressing the paper P against the upper edge of the reference plate 10 can be further folded in half in the longitudinal direction.
Still another function of the paper folding device X is a function of pulling out the paper that has been folded into a strip shape. In FIG. 4, the paper P folded by the paper folding machine X has a short-side notch 11 of the reference plate 10, a short-side notch 24 of the first rotating body 20, and a short-side notch 31 of the second rotating plate. Since this portion only has the paper P, the paper P can be pulled out by holding this portion with a finger and pulling it upward. At this time, if the strip-shaped paper P is longer than the length of the paper folding device X and protrudes from the lower short side as shown in FIG. Can do. Further, the corner portion 12 of the lower short-side reference plate 10 and the corner portion 32 of the second rotating body 30 are positioned at the fold of the folded paper. If this part has a right-angled corner, the paper may be torn by pulling out, but the corner 12 and the corner 32 are rounded, so the paper is hardly torn.

  The case where a specific paper is folded using the above functions will be described below. First, a case where the paper of A3 size shown in FIG. 5 is folded in the size of A4 by folding the one-dot chain line in the mountain fold and the two-dot chain line in the valley fold is illustrated. In this case, the reference plate 10 having a short side of 105 mm and a long side of 300 mm is used. In addition, the length of a long side should just be 297 mm or more. First, the right end of the A3 paper is brought into contact with the boundary between the reference plate 10 and the first rotating body 20 of the paper folding device X, the first rotating body 20 is tilted to the upper surface side of the reference plate 10, and the paper P is sandwiched. The second rotating body 30 is rotated to the back side of the reference plate 10 while the paper P is being wound, and finally, the third rotating body 40 is tilted toward the second rotating body 30 while the paper P is being wound. A crease as shown in can be made. Thereafter, the paper folding device X is returned to the original state, the paper is removed, and the paper folding device X is folded along the crease, whereby the paper of A3 size can be folded into the size of A4.

  Next, a case where the A1 paper is folded into a bag according to the JIS standard will be exemplified. This will be described with reference to FIG. 6 (a). The folds P1 and P3 are fold-folded, and the folds P2 and P4 are fold-folded to form a strip shape as shown in FIG. 6 (c). This is a folding method in which the fold line P5 at the center in the longitudinal direction is folded in a mountain so that the title part I becomes a front. For this, a reference plate 10 having a short side length of 170 mm and a long side of 400 mm is used. In addition, the length of a long side should just be 297 mm or more. Further, the distance from the scale drawn by the thick line at the center of the scale 23 to the edge perpendicular to the longitudinal direction of the first rotating body 20 is 1/2 the length in the short side direction of the paper of A1. Is set to 297 mm. First, since the length of the long side of the reference plate 10 is shorter than the short side of the A1 paper, creases are made in two steps. In the method, the right edge of the paper P is brought into contact with the boundary between the reference plate 10 of the paper folding device X and the first rotating body 20 so that the lower corner is positioned slightly inside the reference plate 10. The first rotating body 20 is tilted to the upper surface side of the reference plate 10 to sandwich the paper P, and the second rotating body 30 is rotated to the back surface side of the reference plate 10 while the paper P is wound. Here, the paper folding device X is once returned to the original position, and the reference edge 10 of the paper folding device X is set so that the upper edge of the right edge of the paper P is positioned slightly inside the reference paper 10. And the first rotating body 20 are brought into contact with each other, and a crease is formed by the same operation. Thereby, the fold line P1 is formed. Next, the edge of the right end of the paper P is brought into contact with the boundary between the reference plate 10 of the paper folding device X and the first rotating body 20 so that the lower corner is located slightly inside the reference plate 10, and the first The rotating body 20 is tilted to the upper surface side of the reference plate 10 to sandwich the paper P, the second rotating body 30 is rotated to the back surface side of the reference plate 10 while the paper P is being wound, and the third rotating body 40 is moved the second time. A part of the fold line P2 is formed by rotating the moving body 30 side. In this state, the third rotating body 40 is temporarily returned to the original position, the second rotating body 30 is loosened and the paper P is shifted so that the upper edge is positioned inside the reference plate 10, and again the third rotating body. All the folds P2 can be formed by rotating 40 to the second rotating body 30 side. In addition, when a part longer than the longitudinal direction of the reference plate is used in this way, the method of folding in several times as described above is adopted, and the paper is folded into a Z-shaped cross-sectional view on the upper side of the paper, and the notches 11, 24, A method of making a crease by pulling paper upward from 31 is also possible. Then, the paper folding device X is returned to the original position, the paper P is removed, and the paper folding device X is folded along the formed folds P1 and P2, so that the state shown in FIG. By repeating the same operation as described above again in this state, the fold line P3 and the fold line P4 can be formed. When the folds P3 and P4 are formed, the paper P can be folded into a strip shape as shown in FIG. 6C by returning the paper folding device X to its original position and folding it along the folds P3 and P4. . Thereafter, the strip-shaped paper P is sandwiched between the reference plate 10 and the first rotating body 20 as shown in FIG. 3, and the lower edge is folded while being pressed against the upper edge of the reference plate 10 with a thick scale. The crease P5 can be made. Thereafter, the paper folding device X is removed from the paper P, and the paper is folded at the fold line P5 to complete the bag folding.

Further, an example in which A1 paper is folded to A4 size will be described. In this case, the fold line P1 in FIG. 7A is a mountain fold, the fold line P2 is a valley fold, and FIG.
When the state (b) is reached, the creases P3 and P5 are folded in a mountain, and the creases P4 and
This is a method of folding P6 and P7 into a state as shown in FIG. For this purpose, two paper folding devices X having different sizes are used. The first paper folding device X has a short side length of about 149 mm, and the second paper folding device X has a short side length of about 158 mm.
It is. First, using the first paper folding device X, the A1 paper P in the state of FIG. 7A is folded into the state of FIG. Next, using the second paper folding device X, first, it is folded into the state of FIG. 7 (c), and further folded from here to the state of FIG. Then, the fold line P7 can be folded by hand so that a binding substitute hole is not opened in the drawing portion, and the state shown in FIG.

The material of the paper folder X shown in the above embodiment is an example, and various materials such as other synthetic resins and metal plates can be used as long as they can be formed thin and are durable. Various methods can be employed for joining the rotating plates or joining the rotating plate and the reference plate.
In the above embodiment, the scale 23 is provided on the first rotating body 20, but it may be provided on the reference plate 10 or the second rotating body 30. Moreover, the hole 22 through which the finger is provided in the first rotating body 20 may be a notch, and the position may be any position as long as the paper can be pressed by the finger.
Furthermore, the paper folding device X shown in the above embodiment can crease the paper at two locations by one operation, but as shown in the side view of FIG. Only the plate-like member having the same shape as the reference plate 10 or both edges constituting the long side are plate-like members and the sheet-like members 30a, 30b. Further, a plate-like member having substantially the same shape as that of the reference plate 10 at the edge portion connecting the reference plate 10 and the third rotating body 40 or only both edge portions constituting the long side are plate-like members, and a sheet-like member is provided between them. It is also possible to make three or more creases by connecting 40a, 40b.

It is a perspective view which shows the paper folding device which concerns on embodiment. (A)-(d) is a side view which shows the use process of a paper folding device. It is a perspective view which shows the other usage method of a paper folding device. It is a perspective view which shows other usage method of a paper folding machine. It is a front view which shows the example of the paper folded. (A) is a front view which shows the other example of the paper folded, (b) (c) is a front view which shows the state in the middle of the folding of the paper shown to (a). (A) is a front view which shows the further another example of the paper folded, (b) (c) (d) is a front view which shows the state in the middle of the folding of the paper shown to (a), (e ) Is a front view showing a state in which the paper shown in (a) is finally folded. It is a side view which shows the modification of a paper folding device.

Explanation of symbols

X Paper folding device 10 Reference plate 20 First rotating body 11, 24, 32 Notch 22 Hole 23 Scale 30 Second rotating body 40 Third rotating body

Claims (4)

A reference plate made of a rectangular plate, and
A hole or a hole for inserting a finger, which is formed by a sheet body or a plate-like body having substantially the same shape and size as the reference plate, and whose one edge is pivotally fixed to one edge along the longitudinal direction of the reference plate. A first rotating body provided with a notch;
The first rotating body has substantially the same shape and size as the reference plate, and both edge portions constituting at least the long side are plate-like bodies, and the gap between the both edge portions is formed by a sheet body or a plate-like body. A second rotating body whose one edge is rotatably fixed to an edge not connected to the reference plate along the longitudinal direction of
A rectangular plate-like body having substantially the same length as the reference plate, and one edge is rotatably fixed to an edge connected to the first rotating body along the longitudinal direction of the reference plate. A paper folding device having a third rotating body.   The paper folding device according to claim 1, wherein the first rotating body is formed of a transparent material.   One of the reference plate, the first rotating body, and the second rotating body is formed of a transparent material, and a scale serving as a reference perpendicular to the longitudinal direction is written on any main surface. Item 3. A paper folding machine according to item 1 or 2.   The reference plate, the first rotating body, and the second rotating body are notched at the same position on the edges constituting the short sides thereof, and the reference plate is opposed to the short sides. The paper folding device according to any one of claims 1 to 3, wherein a corner portion that is located on a short side of the second rotating body and is not connected to another edge has a rounded corner.

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