JP5391239B2 - Drawing folding tool - Google Patents

Description

  The present invention relates to a drawing folding tool used when folding various manufacturing drawings and design drawings.

  In the manufacturing industry such as electricity and machinery, or in the construction industry such as architecture and civil engineering, various manufacturing drawings and design drawings are widely used, and most of these drawings are on the paper of the international standard A row. It is drawn. The international standard A-line paper is an international standard defined by ISO 216, and the size of the paper is defined by the dimensions as shown in FIG.

  That is, the aspect ratio of the paper in the A row is 1: “square root 2”, and the area of the paper is doubled each time the number in the A row displayed as A4 or A3 is decreased by one. The length of the side is “square root 2” times. Further, as is clear from FIG. 1, the length of the long side of the paper with the upper number (larger number) in column A is the length of the short side of the paper with the lower number (smaller number). It becomes.

  Various methods are used to fold a drawing drawn on such A-line paper, but generally, a drawing folding method defined by the Japanese Industrial Standard (JIS) standard is often used. The drawing folding method according to the JIS standard is the standard drawing method as “drawing paper size and drawing style” in JISZ8311. For example, various folding methods as shown in FIG. Has been.

  Usually, papers of A0 to A4 size are used as drawings for drawings such as design drawings and manufacturing drawings, and these drawings may be folded to A4 size for filing and carrying convenience. Many. Therefore, also in each case shown in FIG. 2, various methods for folding the A0 to A3 size drawings into the A4 size are shown.

  Generally, in the manufacturing industry and the construction industry, file folding and drawing bag folding shown in FIG. 2 are often used as folding methods for such drawings. Incidentally, file folding is often used when filing a folded drawing with a binding margin into an A4 size binder or the like, and drawing bag folding is used to create an A4 size envelope with a binding margin. Used when entering.

  As is apparent from FIG. 2, the folding method of the drawing is relatively complicated, and a certain amount of experience and skill are required to fold the drawing in accordance with JIS standards. Moreover, in order to fold a drawing neatly, a ruler, a ruler, or an auxiliary tool such as a drawing board may be required. For this reason, in order to perform drawing folding quickly and accurately in accordance with JIS standards, various drawing folding tools or drawing folding devices as disclosed in, for example, Patent Documents 1 to 5 have been conventionally devised. It was.

Japanese Patent Laid-Open No. 11-147668 JP 2000-006274 A JP 2001-138691 A JP 2001-199629 A JP 2009-023746

  However, the conventional drawing folding tool has a complicated structure and its product price tends to be relatively high. Moreover, there are many restrictions on the size of the drawing to be folded. For example, the inventions according to the prior art documents of Patent Documents 1 to 3 are limited to a function of simply folding a drawing such as an A4 plate in three. In addition, the invention according to the prior document of Patent Document 4 or 5 is limited to the case where a drawing having a size up to A1 or A2 size is folded into A4 size.

  The present invention aims to solve such a conventional problem. More specifically, the present invention has a very simple structure and facilitates drawing from A0 to A3 size. An object of the present invention is to provide a drawing folding tool that can be folded to the size of A4 size.

The drawing folder according to the first aspect of the present invention achieves the above object,
For drawings drawn on the paper of the international standard A row, with a drawing folding tool for folding a drawing larger than the A4 size into the size of the A4 size or the size suitable for loading and unloading into the A4 size drawing storage bag There,
An A4-size plate-like base that defines one long side as a reference side that serves as a reference when the drawing is folded, and a base portion parallel to the reference side on at least one surface of the base portion. Having a groove engraved over the entire length,
The groove is carved along a distance of 170 mm from the reference side.
Unless otherwise specified in the future, dimensional tolerances shall be in accordance with JIS B0405 “Tolerance of length and angle dimensions without individual tolerance indication” c grade.

The drawing folding tool according to the second aspect of the present invention is the above first aspect,
The thickness of the base is 1.5 to 2 mm, more preferably 1.5 mm.

The drawing folding tool according to the third aspect of the present invention is the first or second aspect,
The depth of the groove is 0.8 to 1 mm, more preferably 0.8 mm, and the value obtained by subtracting the depth of the groove from the plate thickness of the base is 0.7 mm or more.

Moreover, the drawing folding tool by the 4th viewpoint of this invention is the said 1st or 2nd viewpoint,
The groove width of the groove is 2 to 2.5 mm, more preferably 2.5 mm.

The drawing folding tool according to the fifth aspect of the present invention is the above first or second aspect,
The side wall on the reference side side of the groove is chamfered with a curvature of 4.5 to 5.5 mm, more preferably 5 mm.

A drawing folding tool according to a sixth aspect of the present invention is any one of the first to fifth aspects,
It further comprises a rod-shaped pressing tool that presses the drawing along the groove from above the drawing placed on the base, and creases the drawing.

  Therefore, according to the configuration of the present invention as described above, a drawing folding tool capable of easily performing a drawing folding operation based on the JIS standard can be realized with an extremely simple structure.

  Since the drawing folder according to the present invention has a very simple structure, its manufacturing cost is low. In addition, when using this to fold drawings, operators can learn drawing folding methods based on JIS standards in a very short time, and even beginners can easily fold drawings quickly and accurately. Will be able to do it.

  Embodiments, which are the best modes for carrying out the present invention, will be described below with reference to the drawings attached to the specification of the present application.

  First, the overall structure of the drawing folder 10 according to the present invention is shown in the perspective view of FIG. As shown in the figure, the drawing folding tool 10 includes a base part 11, a reference side 12, and a groove part 13. The base 11 is a plate-like member of A4 size (210 mm x 297 mm), and it is possible to use any material such as synthetic resin such as plastic or bakelite, metal, wood or hard cardboard as the material. It is.

  The plate thickness t of the base portion 11 is desirably as thin as possible in consideration of errors that occur during work when performing folding according to the outer shape of the drawing folding tool, but is vulnerable to the provision of grooves. Can be set in a range of 1.5 to 2 mm, and it is preferable to set t = 1.5 mm in view of a practical viewpoint.

  The reference side 12 is one side of the long side (297 mm) of the base part 11 and is a part to be used as a reference when the drawing is folded using the drawing folding tool 10. Further, the groove 13 is a groove carved on the surface of the base part 11, and is carved on the surface of the base part 11 in parallel with the reference side 12 while maintaining a distance of 170 mm from the reference side 12. ing.

  The 170 mm dimension is a dimension that is used as a reference when performing file folding or bag folding of a drawing based on the JIS standard as shown in FIG. As for the dimensional tolerance, the dimensional tolerance for folding satisfies JISZ8311 “Drawing paper size and drawing style” appendix FIG. 1, JISB0405 “Length tolerance and angular dimension tolerance without individual tolerance designation”. It shall be according to c grade.

  The depth d of the groove 13 can be set in a range of 0.8 to 1 mm, but the depth d of the groove 13 is subtracted from the plate thickness t of the base 11 in order to maintain the strength of the base 11. The value (t-d) is preferably 0.7 mm or more. In view of practical viewpoint, d = 0.8 mm is preferable. On the other hand, the width w of the groove 13 can be set in a range of 2 to 2.5 mm, and it is preferable to set w = 2.5 mm in view of a practical viewpoint.

  Further, as shown in FIG. 4 which is a cross-sectional view of the drawing folding tool 10 in the short side direction, the side wall on the reference side of the groove 13 may be chamfered. By performing the chamfering process, when the drawing is creased along the groove portion 13, the adhesion between the drawing and the base portion 11 is increased, and the crease work is easily performed. Incidentally, the curvature R at the time of chamfering can be set in the range of 4.5 to 5.5 mm, and it is preferable to set R = 5 mm in view of practical viewpoint.

  The groove portion 13 may be provided on only one surface of the base portion 11 or may be provided on both surfaces of the base portion 11. However, when providing the groove part 13 on both surfaces of the base part 11, in order to ensure the intensity | strength of the base part 11, a different long side of the base part 11 can be set as the reference | standard side 12 in each surface of front and back. preferable. Thereby, it can avoid that the groove part 13 is carved in the same position in the front and back both surfaces of the base part 11. FIG.

  Next, a drawing folding method using the drawing folding tool 10 according to the present invention will be described. Note that the method of folding the drawing conforms to the folding method based on the JIS standard shown in FIG. The drawing folding method is limited to file folding and drawing bag folding, which are often used in industry.

(1) When folding A3 size drawings (1-1) When folding files according to JIS standards When folding files according to JIS standards, first fold the drawing folding tool 10 on top of the drawings. The left end of the drawing is aligned with the long side opposite to the reference side 12 of the base 11. Next, the drawing is valley-folded along the reference side 12, and the drawing is further mountain-folded so that the right end portion of the drawing is aligned with the ridge line portion generated by the valley folding. That is, in this mountain fold, the right half of the drawing generated by the previous valley fold is further divided into halves.

  Here, the “left end” of the drawing indicates the left side edge on the front side of the drawing in the unfolded state before folding, and the “right end” of the drawing similarly indicates in the unfolded state before folding. It is assumed that the right side edge on the front side of the drawing is shown, and this expression will not change even if the apparent position and state become different due to subsequent folding processing, turning over, and the like. On the other hand, the term “left part” or “right part” in the drawings used in the following description refers to the left end of the folded drawing and its vicinity in the state where the folding process is in progress. Alternatively, the right end and its vicinity are shown.

  The “valley fold” indicates how to fold the drawing so that the front side of the drawing is sandwiched, and corresponds to a fold represented by a dotted line in FIG. On the other hand, the “mountain fold” indicates a folding method in which the drawing is folded so as to sandwich the back side of the drawing, and in FIG. 2, a crease represented by a solid line is shown.

  By the series of folding processes described above, the A3 size drawing is folded to the A4 size. In addition, only the left end before folding the drawing remains in the left part of the drawing after folding, and the other part of the drawing does not overlap, so this left part can be used as a binding margin. The drawing can be filed in a binder or the like. Thus, even after filing, it is possible to easily view without removing the drawings from the binder one by one.

(1-2) When performing drawing bag folding according to JIS standard When drawing bag folding according to JIS standard is performed on the A3 size drawing, the drawing folding tool 10 is laid under the drawing, and the right end of the drawing is the base portion 11. To the reference side 12. Next, a crease is made on the drawing along the groove 13 carved on the surface of the base 11.

  When making a crease in the drawing, the crease may be made by tracing the drawing from above with a fingernail or the like. However, as will be described later, a rod-shaped pressing tool adapted to the groove 13 is prepared in advance. The groove portion 13 may be traced from the top of the drawing using, and the drawing may be creased. Next, the drawing is folded in a fold along the crease, and further, the drawing is valley-folded so that the left end portion of the drawing is aligned with the right end portion of the drawing folded on the back side of the drawing.

  By the way, when the A3 size drawing is folded into a drawing bag, the width of the folded drawing becomes 170 mm, which is shorter than the width (210 mm) of the short side of normal A4 size paper. For this reason, for example, the convenience of storing a folded drawing in an A4 size envelope with a binding margin or a filing by filing a left side portion of a normal A4 size envelope is increased. become.

  Since the title column of the drawing is generally written in the lower right corner of the drawing, the title of the drawing is obtained by performing the above-described file folding or drawing bag folding on the A3 size drawing. The column will always appear on the top surface of the folded drawing. Therefore, the user of the drawing can easily view the title column without opening the folded drawing.

(2) When folding the A2 drawing (2-1) When folding the file according to the JIS standard As with the A3 drawing, first, the drawing folding tool 10 is overlaid on the drawing, and the left end of the drawing. Is aligned with the long side opposite to the reference side 12 of the base 11. At this time, the lower corner of the left end of the drawing is aligned with the lower end corner of the long side. Then, the entire upper part of the drawing is valley-folded along the upper short side of the drawing folding tool 10, and the base 11 is overlapped on the drawing in this state, and the left end of the drawing is opposite to the reference side 12. After aligning the long sides, valley folding is performed along the reference side 12 of the base 11.

  However, the “valley fold” referred to here does not exactly match the previously defined “how to fold so that the front side of the drawing is sandwiched”. This is because the surface visible at this point is not only the front side of the drawing but also the upper side of the drawing. Therefore, in the future, unless another definition is specified, a folding method that sandwiches the entire surface (or a part) visible at that time is defined as “valley folding”.

  Subsequently, the drawing folded up to the above process is placed in a state where the title column is visible, the drawing folding tool 10 is laid down, the right end of the drawing is aligned with the reference side 12 and along the groove 13 on the drawing. Make a crease and fold the drawing along this crease. However, the term “mountain folding” here does not exactly match the previously defined “how to fold so that the back side of the drawing is sandwiched”. This is because the surface visible at this point is not only the front side of the drawing, but there is also a back side at the top, and if you look at the flipped part of this top, it will be folded so that the front side of the drawing is sandwiched .

  Therefore, in the future, unless another definition is specified, a folding method that sandwiches a surface opposite to the surface that is visible at that time (back surface) is defined as “mountain fold”. At this stage, when the drawing is placed in a state where the title column is visible, the right end portion of the drawing does not coincide with the ridge line portion when the valley is first folded along the reference side 12. Therefore, in order to align the right end portion of the drawing with the ridge line portion, a so-called “folding of adjustment” is added to the drawing, in which a mountain fold and a valley fold are alternately added once. Thereafter, considering the convenience when filing the folded drawing, the upper corner of the left end when the upper part of the drawing is first folded is cut into a strip shape (removal allowance) to complete the folding process.

  Various methods can be considered for the “folding of adjustment”, and one method is as follows. First, the drawing folded immediately before “adjustment folding” is temporarily returned to a state where the upper part of the drawing is valley-folded. That is, the entire upper part is folded in a valley, the valley is folded on the left side of the drawing, the fold of the mountain fold is attached on the right side, and the drawing is returned to the state where the title column is visible on the lower right.

  Next, after putting the drawing in this state on the drawing foldable tool 10 and overlapping the left side valley fold fold according to the reference side 12 of the base portion 11 (that is, the drawing foldable tool 10 is Rotate up and down 180 degrees from the previous placement, and place it so that the reference side 12 is on the left side, and overlap the reference side 12 with the valley fold on the left side of the drawing.) A crease is made (that is, a crease is made 170 mm to the right of the left fold crease), and a mountain fold is made based on this. Then, further valley folding is performed so that the ridge line portion generated by the mountain fold overlaps with the ridge line portion formed by reviving the mountain fold on the right side.

  By the folding process described above, the A2 size drawing can be folded to the size of the A4 size, and only the left end portion before folding the drawing remains on the left side portion of the folded drawing, and the other portions of the drawing are folded. There is nothing. Therefore, by using the left side portion as a binding margin, the folded drawing can be filed in a binder or the like. In addition, the title of the drawing can be read while being filed, and can be easily opened without removing the drawing from the binder.

(2-2) When performing drawing bag folding according to JIS standard When performing drawing bag folding according to JIS standard for drawing of A2 size, first lay the drawing folding tool 10 under the drawing and place the lower corner of the right end of the drawing at the lower corner. Align with the lower end corner of the reference side 12 of the base 11. Next, a crease is made from the upper end to the lower end of the drawing along the groove portion 13 carved on the surface of the base portion 11. In addition, when making a crease, if the reference | standard side 12 of the base part 11 is moved to an up-down direction along the right end part of drawing, an exact and beautiful crease can be made.

  After making a crease in the vertical direction of the drawing in this manner, the drawing is folded along the crease. Next, the drawing is valley-folded so that the left side portion of the drawing is aligned with the right end portion of the drawing folded on the back side of the drawing by such mountain folding. Subsequently, the drawing is folded in a mountain shape so that the right side portion of the drawing is aligned with the ridge line portion generated by the first mountain folding. That is, the drawing is folded in a mountain so that the ridge line portion generated by the valley fold and the ridge line portion generated by the first mountain fold overlap.

  Next, the drawing folding tool 10 is overlaid on the drawing after the above folding processing is completed (that is, the drawing in which the title column is on the back side and stacked at the bottom), and the lower end of the drawing Align the lower end of the base 11 with Then, the upper part of the drawing is valley-folded along the upper short side of the base part 11 (that is, folded so as to cause the upper part of the drawing), and the folding process of the drawing is ended.

  Also in the case of the A2 size drawing bag folding described above, the width of the final folded drawing is 170 mm, which is shorter than the short side (210 mm) of the normal A4 size, so that the folded drawing is the A4 size. It can be easily placed in an envelope with a binding margin in size. Further, since the title column of the drawing also appears on the uppermost surface of the folded drawing, the contents can be easily recognized without opening the drawing.

(3) When folding the A1 drawing (3-1) When performing file folding according to the JIS standard In this case as well, the drawing folding tool 10 is overlaid on the drawing, and the left end of the drawing is the reference edge of the base 11. Align with the long side opposite to 12. At this time, the lower corner of the left end of the drawing is aligned with the lower end of the long side. Next, the whole upper part of the drawing is valley-folded along the upper short side of the base part 11, and then the drawing folding tool 10 is overlaid on the drawing half-folded in the vertical direction, and the left end of the drawing Is aligned with the long side opposite to the reference side 12 of the base 11, and the drawing is valley-folded along the reference side 12.

  After the above folding process is completed, it is confirmed that the reference side 12 of the base part 11 is in close contact with the inside of the ridge line part generated by the valley folding along the reference side 12 and is sandwiched in the drawing. After that, the drawing folded along the groove portion 13 of the base portion 11 from the top of the overlapping drawings is creased, and the drawing is folded along the folds (double in the vertical direction, that is, two sheets overlap). The folded state of the drawing is valley-folded (that is, the folding is performed by pulling up the left portion of the drawing).

  Thereafter, the drawing is folded so that the right side portion of the drawing is aligned with the ridge line portion generated by the first valley folding along the reference side 12 described above. That is, the ridge line portion generated by the valley fold is overlapped with the ridge line portion generated by the previous valley fold. Further, the drawing is folded in a mountain shape so that the right end of the drawing is aligned with the ridge formed by the valley fold, that is, the right end of the drawing overlaps the ridge of the valley.

  After that, when the upper half of the drawing is first folded, the upper left corner of the drawing is cut into a strip shape (tolerance), and the upper right corner of the drawing is folded into a triangular shape (according to the first definition). “Folding”) and the drawing folding process is terminated. As a result, the A1 size drawing can be folded to the size of the A4 size, and only the left end portion of the drawing before folding the drawing remains on the left side portion of the folded drawing.

  Therefore, by using the left portion of the drawing as a binding margin, the folded drawing can be filed in a binder or the like. In addition, the drawing can be easily opened without removing the drawing from the binder one by one, and the drawing can be opened even in the filing state by the last triangular valley fold ("mountain fold" defined by the first definition). It is possible to read through the title column.

(3-2) When performing drawing bag folding according to the JIS standard When carrying out drawing bag folding according to the JIS standard for the A1 size drawing, first lay the drawing folding tool 10 under the drawing and place the lower corner of the right end of the drawing at the lower corner. Align with the lower end corner of the reference side 12 of the base 11. Next, a crease is made from the upper end to the lower end of the drawing along the groove portion 13 carved on the surface of the base portion 11. In addition, when making a crease, if the reference | standard side 12 of the base part 11 is moved to an up-down direction along the right end part of drawing, an exact and beautiful crease can be made.

  After making a crease in the vertical direction of the drawing in this manner, the drawing is folded along the crease. Next, the drawing is valley-folded so that the left side portion of the drawing is aligned with the right end portion of the drawing folded on the back side of the drawing by such mountain folding. Subsequently, the drawing is folded in a mountain shape so that the right side portion of the drawing is aligned with the ridge line portion generated by the first mountain folding. Further, the drawing is folded in such a manner that the left end portion of the drawing is aligned with the ridge line portion generated by the above valley folding.

  Next, the drawing folding tool 10 is overlaid on the drawing after the above folding process is completed (that is, the title column is stacked on the bottom side with the title column on the back side), and the lower end of the drawing is used as the base. Align the lower end of the base 11. Then, the upper part of the drawing is valley-folded along the upper short side of the base part 11 (that is, bent by causing the upper part of the drawing), and is folded in half in the vertical direction of the drawing, thereby completing the folding process of the drawing.

  Also in the case of the A1 size drawing bag folding described above, the lateral width of the final folded drawing becomes 170 mm by continuous mountain folding → valley folding → mountain folding → valley folding in the horizontal direction of the drawing. It becomes shorter than the short side (210 mm) of the plate size. Accordingly, the folded drawing can be easily stored in an A4 size envelope having a binding margin. In addition, since the title column of the drawing also appears on the top surface of the folded drawing, the contents can be easily recognized without opening the drawing.

(4) When folding the A0 size drawing (4-1) When folding the file according to the JIS standard In this case as well, the drawing folding tool 10 is overlaid on the drawing, and the left end of the drawing is the reference side of the base 11. Align with the long side opposite to 12. At this time, the lower corner of the left end of the drawing is aligned with the lower end of the long side. Next, the entire upper part of the drawing is folded along the upper short side of the base part 11.

  Subsequently, valley folding (“mountain folding” according to the definition of the folding method performed first) is performed so that the upper end portion of the drawing is aligned with the crease formed by the previous valley folding. That is, this folding is a further division of the remaining upper part of the drawing generated by the previous valley folding, and the remaining part is divided in half in the vertical direction.

  As a result, the vertical length of the drawing falls within the same length (297 mm) as the long side of normal A4 size paper. Thereafter, the drawing folding tool 10 is superimposed on the drawing folded in the vertical direction, the left end of the drawing is aligned with the long side opposite to the reference side 12 of the base part 11, and the reference side 12 of the base part 11 is aligned. Fold it along the valley.

  After the above folding process is finished, the reference side 12 of the base part 11 is closely attached to the inside of the ridge line part generated by the valley folding of the drawing along the reference side 12 described above. After confirming the above, the drawing folded along the groove 13 of the base portion 11 is creased from the top of the overlapping drawings. Along the crease, the drawings (trips in the up-down direction, that is, three stacked) are valley-folded (that is, folded up so that the left portion of the drawings is pulled up). The crease generated here is a “mountain fold” defined by the first folding method.

  Next, a right side portion of the drawing is formed on a ridge line portion formed by valley folding performed along the reference side 12 immediately after the vertical direction of the folded drawing is set to be the same length as the long side of the A4 size paper. Fold the drawings so that they are aligned. That is, the ridge line portion generated by the valley fold is overlapped with the ridge line portion generated by the previous valley fold.

  Then, the drawing is valley-folded according to the ridge line portion generated when the drawings in a state where three sheets are overlapped along the groove portion 13 are valley-folded. That is, the ridge line portion generated by the valley fold is overlapped with the ridge line portion generated by the previous valley fold. Subsequently, immediately after the vertical direction of the folded drawing is set to be the same length as the long side of the A4 size paper, the ridge line portion formed by the valley folding performed along the reference side 12 immediately after the drawing is shown in FIG. Fold the drawing in the same way as when you fold the drawing so that the right side is aligned.

  At this stage, when the folding process is partially returned, i.e., returned to the state in which the folding in the vertical direction is completed, and the title column of the drawing comes in the lower right direction, the vertical direction from the left end part There is a valley fold at 210 mm, a mountain fold at 170 mm on the right side, a valley fold at 170 mm on the right side, a mountain fold at 170 mm on the right side, and a valley fold at 170 mm on the right side.

  Further, on the right side, the remaining portion (170 mm or more) wide up to the right end can be confirmed. Subsequently, the mountain folding process is performed so that the remaining portion on the right end side of the drawing is divided into two equal parts in the vertical direction. That is, the drawing is mountain-folded so that the right end portion of the drawing is aligned with the ridge line portion formed by the last (rightmost) valley fold.

  After that, when the upper part of the drawing is first folded into a valley or a mountain, the upper left corner of the drawing is cut into a strip shape (removal allowance), and the top surface at this stage of the drawing (double overlapped state) The lower right part of the uppermost surface is valley-folded in a triangular shape to finish the folding process of the drawing. Through the series of folding processes described above, the A0 size drawing can be folded into the A4 size, and only the left end portion of the drawing before folding remains on the left side portion of the folded drawing. .

  Therefore, by using the left portion of the drawing as a binding margin, the folded drawing can be filed in a binder or the like. Further, it can be easily opened without removing the drawing from the binder or the like, and furthermore, the title column of the drawing can be read in the filing state by the last triangular valley fold.

(4-2) Drawing bag folding according to JIS standard When drawing bag folding according to JIS standard for drawing of A0 size, first lay the drawing folding tool 10 under the drawing and place the lower corner of the right end of the drawing. Align with the lower end corner of the reference side 12 of the base 11. Next, a crease is made from the upper end to the lower end of the drawing along the groove portion 13 carved on the surface of the base portion 11. In addition, when making a crease, if the reference | standard side 12 of the base part 11 is moved to an up-down direction along the right end part of drawing, an exact and beautiful crease can be made.

  After making a crease in the vertical direction of the drawing in this manner, the drawing is folded along the crease. Next, the drawing is valley-folded so that the left side portion of the drawing is aligned with the right end portion of the drawing folded on the back side of the drawing by such mountain folding. After that, fold the drawing so that the right side of the drawing is aligned with the ridge line created by the first mountain fold, and align the left side of the drawing with the ridge line generated by the first valley fold. Fold the valley.

  Folding as described above, “mountain folds so that the right part of the drawing is aligned with the ridge line part caused by the mountain fold”, and “fold the drawing so that the left part of the drawing is aligned with the ridge line part caused by the valley fold” By repeating the process one more time, the overall width of the folded drawing becomes 170 mm.

  Next, the drawing folding tool 10 is overlaid on the drawing after the above folding processing is completed (that is, the drawing in which the title column is on the back side and stacked at the bottom), and the lower end of the drawing Align the lower end of the base 11 with Then, the upper part of the drawing is valley-folded along the upper short side of the base part 11 (that is, the upper part of the drawing is raised and bent).

  Subsequently, the valley fold is once opened, the drawing folding tool 10 is slid upward, the lower end of the base 11 is aligned with the fold generated by the previous valley fold, and then the upper portion of the drawing is again based. The valley is folded along the upper short side of the base part 11 (that is, it is bent by causing the upper part of the drawing). As a result, the length in the vertical direction of the drawing falls within the length of the long side (297 mm) of the normal A4 size.

  In the case of A0 size drawing bag folding as described above, the width of the final folded drawing is 170 mm due to a series of mountain folds → valley folds in the horizontal direction of the drawing. It becomes shorter than the side (210 mm). Accordingly, the folded drawing can be easily stored in an A4 size envelope having a binding margin. In addition, since the title column of the drawing also appears on the top surface of the folded drawing, the contents can be easily recognized without opening the drawing.

  In the embodiment described above, when a crease is made in the drawing, the operation is performed using a fingernail or the like. For example, a dedicated bar-shaped pressing tool 20 as shown in FIG. It may be prepared in advance and creased using this. Incidentally, as the material of the rod-shaped pressing tool 20, it is possible to use any material such as synthetic resin, wood and metal. In addition, when a crease is made in the drawing using the bar-shaped pressing tool 20, the end of the bar-shaped pressing tool 20 is chamfered with a predetermined curvature in order to eliminate the possibility of damaging the drawing paper due to unnecessary pressure on the drawing. It is preferable to perform processing or spherical processing.

  As described above, according to the present invention, it is possible to realize a drawing folding tool that allows a beginner to easily perform a drawing folding operation based on the JIS standard at a very low cost.

  The embodiments of the present invention are not limited to the examples described above. For example, the shape and arrangement of each part constituting each of the examples, or the material thereof is the gist of the present invention. It goes without saying that changes can be made as appropriate according to actual embodiments without departing.

The configuration of the present invention described above can be used in the field of drawing folding tools used when a drawing is folded by a predetermined method.

It is a figure explaining the size of the paper of an international standard A row. It is a figure explaining the folding method of drawing based on JIS specification. It is a perspective view which shows the drawing folding tool by this invention. It is sectional drawing of the short side direction of the drawing folding tool by this invention. It is a figure which shows the drawing folding tool and rod-shaped press tool by this invention.

DESCRIPTION OF SYMBOLS 10 ... Drawing folding tool 11 ... Base part 12 ... Reference | standard side 13 ... Groove part 20 ... Rod-shaped pressing tool

Claims (6)

For drawings drawn on the paper of the international standard A row, with a drawing folding tool for folding a drawing larger than the A4 size into the size of the A4 size or the size suitable for loading and unloading into the A4 size drawing storage bag There,
An A4-size plate-like base that defines one long side as a reference side that serves as a reference when the drawing is folded, and a base portion parallel to the reference side on at least one surface of the base portion. Having a groove engraved over the entire length,
The drawing fold tool, wherein the groove is carved along a distance of 170 mm from the reference side.   2. The drawing folding tool according to claim 1, wherein a thickness of the base portion is 1.5 to 2 mm, more preferably 1.5 mm.   The depth of the groove is 0.8 to 1 mm, more preferably 0.8 mm, and the value obtained by subtracting the depth of the groove from the thickness of the base is 0.7 mm or more. The drawing folder according to 1 or 2.   The drawing folder according to claim 1 or 2, wherein a groove width of the groove portion is 2 to 2.5 mm, more preferably 2.5 mm.   3. The drawing folding tool according to claim 1, wherein a chamfering process having a curvature of 4.5 to 5.5 mm, more preferably 5 mm, is performed on a side wall on a reference side of the groove. The rod-shaped pressing tool that presses the drawing along the groove portion from above the drawing placed on the base portion, and creases the drawing, is further provided. The drawing folder according to at least any one of the above.

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