JP2018034304A - Index sheet and envelope - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an index sheet in which an index tab with strength high enough to be prevented from being easily torn can be formed in various positions, and an envelope.SOLUTION: An index sheet includes: a first folding piece 11 that is one folding piece formed by being folded along a fold 13 parallel to one side of a rectangular sheet; a second folding piece 12 that is the other folding piece formed by being folded along the fold 13; and a plurality of cut parts 111 in which a perforation 116 is provided in an index tab shape to have an end point on the fold 13, in the first and second folding pieces 11 and 12, and which are juxtaposed along the fold 13.SELECTED DRAWING: Figure 1B

Description

  The present invention relates to an index sheet and an envelope capable of forming index tabs having strengths that are not easily broken at various positions on one sheet.

  In recent years, information collection and management by e-mail, PC software, the Internet, etc. has become popular, but when managing these, means such as printout is used, and the printed out information is stored in files, binders, etc. In many cases, the need to organize and store paper, which is an information medium, is increasing.

  Conventionally, bookmarks, sticky notes, glued index tabs, index sheets, etc. are marked to make it easier to organize multiple papers, which are information media bound in these files and binders, and to make it easier to retrieve information. It is used as

  Bookmarks that can be used as such landmarks are temporary and not suitable for storage, sticky notes are easy to peel off, and glued index pieces are difficult to remove once glued, so users can put them around them It does not always have an index tab for bookmarks, sticky notes, and glue. In addition, since index sheets are generally sold in a single product form with a plurality of sheets having different index tab positions, for example, some of the index sheets are used to organize other documents. When organizing with another file or binder, or when some index sheets are lost, all of the remaining index sheets cannot be used, tabs start in the middle, or tabs do not parallel was there.

  On the other hand, a technique is known in which an index tab is formed at a desired position by using an instrument that can create an index tab at an arbitrary position, or by folding back a notched tab at the time of use. For example, Patent Document 1 discloses a technique for forming a simple index tab directly on a document.

  However, the simple index tab formed by the instrument disclosed in Patent Document 1 is supported by a single folding margin 52 as shown in FIG. 12A, and the load applied to the index tab is received by the folding margin. Therefore, there was a problem that the index tab was broken when a little force was applied. In order to avoid this, as shown in FIG. 12B, the strength can be increased by increasing the width of the folding margin 52. However, in order to project the index tab from the sheet end portion 53, the notch portion 51 is provided. Needs to be larger than the width of the folding allowance 52. As a result, there arises a new problem that the punched hole of the index tab is too deep inside and the punched hole itself becomes too large.

  In addition, when storing envelopes in a bookcase, it is generally performed for business purposes such as attaching sticky notes to envelopes and sandwiching and storing index sheets between envelopes. As described above, the sticky note has a drawback that it is easily peeled off. In addition, there is no envelope that folds to form an index tab, but a plurality of index tabs are attached over one side of the envelope as in the envelope disclosed in Patent Document 2, and the unused index tab is cut off. Envelopes with index tabs can be formed.

  However, since the envelope disclosed in Patent Document 2 has a plurality of index tabs protruding from one side of the envelope, it has a poor aesthetics, and when cutting off unused index tabs, it is necessary to A separate tool must be prepared, and all the tabs must be cut out, leaving only one tab, and there is a problem that unnecessary dust is generated each time the tab is formed.

JP 2002-205482 A JP 2011-57283 A

  The present invention has been made in view of such conventional problems. The main object of the present invention is to use an index sheet that can form index tabs at various positions on one sheet, the strength of which the formed index tab is not easily broken, and an instrument without detracting from aesthetics. It is an object of the present invention to provide an envelope that can form an index tab without the need.

Means for Solving the Problems and Effects of the Invention

  According to the index sheet according to the first aspect of the present invention, the index sheet is formed of a rectangular sheet and is bound at an edge portion of the sheet, and is formed by being folded at a fold line parallel to one side of the sheet. A first folded piece that is one folded piece, a second folded piece that is the other folded piece formed by folding at the fold, and the first folded piece or the second folded piece, A perforation is provided in the index tab shape so as to have an end point, and a plurality of cut portions arranged in parallel along the fold line can be provided. By the said structure, an index tab can be easily formed by folding up a notch part along a crease | fold, and it can be hard to tear compared with the conventional simple index tab. In addition, when binding a plurality of index sheets to a file or a binder, the user selects a cut portion at a position different from the cut portion selected by another index sheet from a plurality of cut portions arranged in parallel. By folding back, index tabs can be formed at various positions on one sheet, and the index tab positions of a plurality of index sheets can be shifted.

  In the index sheet according to the second aspect of the present invention, the cut portion has a rectangular outer shape formed by the fold line and the perforation, and the perforation adjacent to the fold line. A cut can be provided on the side to have one uncut portion. With this configuration, it is possible to prevent the index tab from being turned up unexpectedly.

  Furthermore, according to the index sheet according to the third aspect of the present invention, the cut portion has a rectangular outer shape formed by the fold line and the perforation, and is formed on each side of the perforation. A cut can be provided to have a non-cut portion. With this configuration, it is possible to prevent the index tabs from being turned up unexpectedly in the manufacturing stage, and to suppress the occurrence of defective products.

  Furthermore, according to the index sheet according to the fourth aspect of the present invention, the first folded piece and the second folded piece are along the two sides at the edge of two sides of the three sides excluding the fold. And can have a sticking part that sticks together. With the above configuration, the first fold piece and the second fold piece form a bag, so that it can be used as an index sheet or a pocket file that can store documents and the like.

  Furthermore, according to the index sheet according to the fifth aspect of the present invention, a cut provided along the sticking part located on the side bound as the index sheet so as to be separable as an envelope among the sticking parts. A separation part can be provided. By the said structure, it can cut | disconnect from a binding part and can also be used as an envelope. In addition, when used as an envelope, a document or the like stored in an index sheet can be sealed as it is.

  Furthermore, according to the envelope according to the sixth aspect of the present invention, in the envelope having a rectangular outer shape with four folds including the fold formed when the flap is folded, at least one of the folds. A perforation is provided in the index tab shape so as to have an end point on the fold line, and a plurality of incisions arranged in parallel along the fold line can be provided. With the above configuration, the index tab can be easily formed by folding the cut portion along the crease, and it is harder to tear than the conventional simple index tab. When the index tab is formed, the index tab is used as an envelope with the index tab. When not formed, it can be used properly as a normal envelope without index tabs. In addition, when storing and managing a plurality of envelopes in a bookshelf or the like, the user selects a cut portion at a position different from the cut portion selected by another envelope from the plurality of cut portions arranged in parallel. By folding back, the position of the index tabs of a plurality of envelopes can be shifted.

  Still further, according to the envelope of the seventh aspect of the present invention, the cut portion has a rectangular outer shape formed by the fold line having the end point and the perforation, and the sewing machine adjacent to the fold line. Cuts are provided on the two sides of the eye so as to have one uncut portion. With this configuration, it is possible to prevent the index tab from being turned up unexpectedly.

  Furthermore, according to the envelope according to the eighth aspect of the present invention, the cut portion has a rectangular outer shape formed by the fold line having the end point and the perforation, and is formed on each side of the perforation. A cut is provided to have one uncut portion. With this configuration, it is possible to prevent the index tabs from being turned up unexpectedly in the manufacturing stage, and to suppress the occurrence of defective products.

It is a block diagram of the index sheet which concerns on Embodiment 1 to which this invention is applied. It is a block diagram of the index sheet | seat of the type which is not provided with the flap which concerns on Embodiment 1 to which this invention is applied. It is an expanded view of the index sheet which concerns on Embodiment 1 to which this invention is applied. It is an expanded view of the index sheet | seat of the type which is not provided with the flap which concerns on Embodiment 1 to which this invention is applied. FIG. 3A is a diagram illustrating a state before the non-cut portion is cut off, and FIG. 3B is a diagram illustrating a state where the non-cut portion is cut off, and FIG. It is a figure which shows the state in which was formed. It is a block diagram of the index sheet which concerns on Embodiment 2 to which this invention is applied. It is an expanded view of the index sheet which concerns on Embodiment 2 to which this invention is applied. It is a block diagram of the index sheet which concerns on Embodiment 3 to which this invention is applied. It is an expanded view of the index sheet which concerns on Embodiment 3 to which this invention is applied. FIG. 8A is a diagram illustrating a state where index tabs are formed at different positions, and FIG. 8B is a diagram illustrating index tabs at different positions, for explaining a method of using the index sheet according to the first embodiment to which the present invention is applied. It is a figure which shows the state which bound the formed several index sheet | seat to the file. It is a figure for demonstrating the usage method as a pocket file of the index sheet which concerns on Embodiment 1 to which this invention is applied. FIG. 10A is a diagram illustrating a state in the middle of cutting along a perforation, and FIG. 10B is a diagram illustrating a method of using the index sheet as an envelope according to Embodiment 1 to which the present invention is applied. It is a figure which shows the state after cut | disconnecting along. It is a block diagram of the envelope which concerns on Embodiment 4 to which this invention is applied. FIG. 12A is a diagram illustrating a state in which the folding margin width is small, and FIG. 12B is a diagram illustrating a state in which the folding margin width is large, for explaining a conventional simple index tab.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the embodiment described below exemplifies an index sheet and an envelope for embodying the technical idea of the present invention, and the present invention does not specify them as the following. Further, the present specification by no means specifies the members shown in the claims to the members of the embodiments. In particular, the dimensions, materials, shapes, relative arrangements, and the like of the component parts described in the embodiments are not intended to limit the scope of the present invention unless otherwise specified, and are merely explanations. It is just an example. Note that the size, positional relationship, and the like of the members shown in each drawing may be exaggerated for clarity of explanation. Furthermore, in the following description, the same name and symbol indicate the same or the same members, and detailed description thereof will be omitted as appropriate. Furthermore, each element constituting the present invention may be configured such that a plurality of elements are constituted by the same member and the plurality of elements are shared by one member, and conversely, the function of one member is constituted by a plurality of members. It can also be realized by sharing.
(Index sheet 1)

  FIG. 1A is a configuration diagram of an index sheet 1 according to Embodiment 1 of the present invention, and FIG. 2A is a development view thereof. As shown in these drawings, the index sheet 1 according to the first embodiment is composed of a sheet of paper as shown in the development view of FIG. 2A, and a first fold piece 11 and a second fold piece separated by a fold line 13. 12. The first fold piece 11 includes six cut portions 111 a to 111 f, and the cut portions 111 a to 111 f are provided with perforations 112 a to 112 f so that each end point is located on the fold line 13.

  Further, the first folded piece 11 has a binding portion 117 having a detachable perforation 116 (corresponding to an example of a “separation portion” in the claims), and a notch 118 at an end on the opening side. I have.

  Further, the second fold piece 12 is provided so as to be connected to the fold line 14 on the opening 15 side, and a flap 121 that is bent with the fold line 14 as a base point, and an adhesive piece 123 on which the adhesive part 122 is provided. I have.

In the first folded piece 11 and the second folded piece 12, the stuck part 114 and the stuck part 122 are stuck to each other in a state where the stuck piece 123 is folded back so that the opening 15 is formed. . In addition, although the paper used for a general index sheet is assumed as the material of the index sheet 1, other paper may be used, for example, a synthetic resin used for a clear file may be used. Moreover, you may affix a protective film on both surfaces or one side of material. Furthermore, as shown in FIG. 1B and FIG. 2B, the flap 121 may not be provided.
(First folded piece 11 and second folded piece 12)

The 1st fold piece 11 and the 2nd fold piece 12 are the members for comprising the bag formed by folding | folding at the crease | fold 13 and sticking by the sticking parts 114 and 122. FIG. The first folded piece 11 and the second folded piece 12 are made of a single sheet of paper as shown in the development view of FIG. 2A, and are divided by the fold line 13 so that the second folded piece 12 is larger than the first folded piece 11. . The second folded piece 12 does not necessarily need to be larger, but the first folded piece 11 or the larger one of the second folded piece 12 includes the binding portion 117. Moreover, when the 1st fold piece 11 and the 2nd fold piece 12 are the same magnitude | size, both are provided with the binding part 117. FIG.
(Incisions 111a to 111f)

  The notches 111 a to 111 f are members for constituting an index tab 113 formed by cutting off the uncut portion NC of the perforation 112 and folding the notch 111 along the fold 13. The six incisions 111a to 111f are surrounded by rectangular perforations 112a to 112f and folds 13, and the end points of the perforations 112a to 112f are located on the folds 13 so as to be along the folds 13. The first fold piece 11 is arranged in parallel.

  Further, as shown in FIG. 3, the non-cut portion NC of the perforation 112 is cut off, and the cut portion 111 is folded back along the fold line 13, whereby the index tab 113 is formed. Thus, since the index tab 113 is continuously formed from the second fold piece 12, the index tab 113 is not easily broken.

Here, the perforations 112a to 112f are not limited to a general perforation shape (the cut portion and the non-cut portion are continuously repeated with the same width), and the cut portion and the non-cut portion are not. The form may be repeated continuously. That is, the non-cut portions NC of the perforations 112a to 112f may be provided to such an extent that they are not turned up unexpectedly during use or manufacture, and at least one per side is sufficient. In this way, by forming one non-cut portion NC on each side, there is an advantage that the cut portion can be easily turned when the index tab is formed. Moreover, the notch parts 111a-111f should just be provided in any one of the 1st fold piece 11 or the 2nd fold piece 12, and the number is not limited to six, for example, the 7th notch part 111g may be provided.
(Sticking part 114 and sticking part 122)

The sticking part 114 and the sticking part 122 are members for sticking the first folded piece 11 and the second folded piece 12 together. In addition, the sticking part 122 is provided in the sticking piece 123 connected with the side edge part and lower edge part of the 2nd fold piece 12, and the index sheet | seat 1 is a side edge, as shown to FIG. 1A and FIG. 2A. And the sticking part 122 of the second folded piece 12 in a state where the sticking part 114 and the sticking piece 123 of the first fold piece 11 are folded, which face each other when they are folded. However, they are bonded to each other with an upper side opened, and are formed in a bag shape having an opening 15 so that a document or the like can be taken in and out from the upper part. In addition, the sticking part 122 is not limited to the above-mentioned, For example, you may provide a sticking part directly in the 2nd fold piece 12. FIG.
(Flap 121)

The flap 121 is a member for closing the bag formed by the first folded piece 11 and the second folded piece 12. The flap 121 is coated with a sealing mouth paste along the outer edge, and is connected to the fold 14 on the opening 15 side of the second fold piece 12 so that the user can include water in the mouth paste. Thus, the documents stored in the index sheet 1 can be sealed as they are. After sealing, it may be separated from the binding portion 117 and used as an envelope, or after separation, it may be sealed and used as an envelope. The flap 121 may be provided on the first folded piece 11. For example, in the form in which the edge on the side having the binding portion 117 is the opening portion 15, a flap having a width that does not overlap the binding portion 117 is formed. The first fold piece 11 may be provided. Of course, the flap 121 is not limited to a mode in which a sealing paste is provided.
(Binding 117)

  The binding unit 117 is a member for binding the index sheet 1 to a file or the like. The binding portion 117 is provided with, for example, 30 small holes, and the index sheet 1 is bound to a file, a binder, or the like through the 30 holes. Note that the binding unit 117 is not limited to a mode in which small holes such as 30 holes or 2 holes for binding to a file or a binder are provided. For example, the binding portion 117 may be a binding margin for bookbinding that is not provided with a small hole, such as eyelet binding, glue binding, saddle stitching, ring binding, thread binding, flat binding, simple binding, ajiro binding, Japanese binding, and the like. The processing corresponding to may be performed.

  In addition, the binding portion 117 has a perforation 116 for separation in the second folded piece 12 so as to follow the sticking portion 122 facing the fold 13. As a result, the bag shape can be maintained even if it is separated from the binding portion 117 in a state of being bound to a file, so that it can be used as an envelope by being separated, and documents stored in an index sheet bound to a file can be used as they are. It can also be sealed. In addition, arrangement | positioning of the perforation 116 is not limited in the sticking part 122 which opposes the crease | fold 13, and the bag shape of the index sheet | seat 1 should just be not impaired. For example, as shown in FIGS. 6 and 5, when there is an opening 15 on the binding portion 117 side of the second folded piece 12, the side 115 on the binding portion 117 side of the first folded piece 11 in the second folded piece 12. Perforations 116 may be provided so as to overlap with each other (details will be described later).

By providing the binding portion 117, the index sheet 1 can be bound to a file even when the cut-out portions 111 a to 111 f are folded back and the index tab 113 is not formed. It can be used as a pocket file with a bag formed of
(Index sheet 2)

  The index sheet according to the present embodiment is not limited to the above-described first embodiment, and the first folded piece 21 is short-folded like the index sheet 2 according to the second embodiment shown in FIGS. 4 and 5. The first folded piece 21 may be folded back with the width of the index tabs 213a to 213f.

  The index sheet 2 according to the second embodiment shown in these drawings is made of a single sheet of paper as shown in the development view of FIG. 5, and includes a first fold piece 21 divided by a fold 23 and a second fold piece 22. Prepare. The first folded piece 21 includes six cut portions 211a to 211f, and the width in the folding direction is the same as the width of the cut portions 211a to 211f. The first folded piece 21 is provided with seven straight perforations 212a to 212g parallel to the folding direction over the fold line 23 and the side 215 on the binding part 223 side of the first folded piece 21.

  The notches 211a to 211f are surrounded by two of the seven straight perforations 212a to 212g, the fold 23, and the side 215 of the first fold 21 on the binding portion 223 side. Further, the second fold piece 22 includes a binding portion 223 having a detachable perforation 222. When the first folded piece 21 is folded back larger than the width of the index tabs 213a to 213f, the notches 211a to 211f are surrounded by rectangular perforations 212a to 212f and the crease 23, The end points of the perforations 212 a to 212 f are positioned on the fold line 23, and are arranged side by side on the first fold piece 21 along the fold line 23.

According to the index sheet 2 according to the second embodiment, it is possible to easily form index tabs 213 having a strength that is not torn off at various positions of one sheet, as in the second embodiment, while suppressing the amount of paper used. .
(Index sheet 3)

  Further, the present invention may be applied to the third embodiment in which the flap 35 is not provided and the opening 35 is provided on the binding portion 323 side. FIG. 6 and FIG. 7 show a configuration diagram and a development view of the index sheet 3 according to the third embodiment.

  The index sheet 3 shown in these drawings is made of a sheet of paper as shown in the development view of FIG. 7 and includes a first fold piece 31 and a second fold piece 32 that are separated by a fold 33. The first folded piece 31 includes six cut portions 311a to 311f. The notches 311 a to 311 f are provided with perforations 312 a to 312 f so that each end point is located on the fold 33. Further, the second folded piece 32 includes a binding portion 323 having a detachable perforation 322, and the first folded piece 31 and the second folded piece 32 have an opening 35 at an edge portion on the side having the binding portion 323. It is mutually stuck in the sticking parts 314 and 324 so that it may become.

According to the index sheet 3 according to the third embodiment, similarly to the first and second embodiments, the index tabs 213 having a strength that cannot be easily broken can be formed at various positions on one sheet. In addition, when the file is bound, the opening 35 is blocked by the back cover of the file, so that there is no possibility that the document stored in the pocket falls.
(Method for manufacturing index sheet 1)

  First, plain plain paper or roll paper as a material is prepared. Next, plain plain paper or roll paper is cut into a predetermined size. Next, the cut sheet material is set in the Thomson machine, and the index sheet 1 is punched into the unfolded shape (see FIG. 2A) with the Thomson machine, and the perforations 112a to 112f, 122 are also uncut portions NC. Cut off leaving.

Then, it affixes on any one of the sticking part 114 or the sticking part 122, and the sticking piece 123 continuously provided in the side edge part is turned back. Next, at the same time as folding at the fold line 13, the sticking part 114 and the sticking part 122 at the side edges are stuck to each other. Finally, the sticking piece 123 continuously provided on the lower edge portion is folded, and at the same time, the sticking portion 114 and the sticking portion 122 at the lower edge portion are stuck to each other. For example, a laser processing machine may be used as the paper cutting method. The index sheets 2 and 3 can be similarly manufactured.
(How to use index sheet 1)

  Then, the usage method of the index sheet | seat 1 is demonstrated based on FIGS. As described above, the cut portion 111 can be used as the index sheet 1 by forming the index tab 113 by cutting the uncut portion NC of the perforation 112 into pieces and folding it along the fold line 13 (see FIG. 3). reference). Further, as shown in FIG. 8A, in a plurality of index sheets 1, by folding back different cut portions from the cut portions 111 arranged side by side, as shown in FIG. The tab 113 can be used as a plurality of index sheets 1 having different positions.

  Further, the index sheet 1 can also be used as a pocket file formed by the first fold piece 11 and the second fold piece 12 by not folding the notch 111 as shown in FIG.

Furthermore, as shown in FIG. 10A, the index sheet 1 can be used as an envelope as shown in FIG. Therefore, when the index sheet 1 is used as an envelope after being used as an index sheet, it is possible to seal a document or the like stored in the index sheet 1 spelled in the file FL as it is. Further, when the index sheet 1 is used as an envelope from the beginning, the index function can be used when the user or the other party receives and manages them on the bookshelf.
(Envelope 4)

  So far, the index sheet is based on the principle of the present invention in which the perforation is provided so as to be applied to the fold of the two-layer sheet, and the index tab is formed by being cut along the perforation and folded along the fold. Embodiments applied to have been described. This principle can also be applied to a single envelope, and can also function when managing and organizing envelopes. Hereinafter, a fourth embodiment in which this principle is applied to an envelope will be described.

  FIG. 11 shows a configuration diagram of the envelope 4 according to the fourth embodiment. As shown in this figure, an envelope 4 according to Embodiment 4 is an envelope having a rectangular outer shape with four folds including a fold formed when a flap 45 is folded, and one side of the four folds. Six rectangular cuts 41 having end points on the fold 44 located in the section are arranged along the fold 44. Further, the cut portion 41 is surrounded by perforations 43a to 43f each having one non-cut portion NC on each side of the rectangle and a fold 44.

  When using the envelope 4, as shown in FIG. 3, the user cuts the non-cut portion NC of the perforation 43 and folds the cut portion 41 along the fold 44 to form the index tab 42. .

  According to the envelope 4 according to the fourth embodiment, the index tab 42 can be formed without impairing the aesthetics and without preparing a separate instrument. Also, the user of the envelope 4 and the recipient can receive the index function when managing and organizing them on the bookshelf.

  As described above, the index sheet 1 according to the first embodiment can easily form the index tabs 113a to 113f by folding the notches 111a to 111f along the creases, and the conventional simple index tab can be used. It's harder to break and can be used as an index sheet or pocket file. In addition, it can be used as an envelope by separating the binding portion 117 at the perforation 116. The same applies to the index sheets 2 and 3 according to the second and third embodiments. In addition, the envelope 4 according to the fourth embodiment can easily form the index tab 42 by folding the cut portion 41 along the fold line 44, and is less likely to be broken than the conventional simple index tab. Sometimes it can be used as an envelope with an index tab and as an ordinary envelope when the index tab is not formed.

  The index sheet of the present invention can also be used as a pocket file or an envelope. The envelope of the present invention can also be used as an envelope with an index tab.

DESCRIPTION OF SYMBOLS 1 ... Index sheet; 11 ... 1st fold piece; 111a-111f ... Notch part; 112a-112f ... Perforation; 113a-113f ... Index tab; 114 ... Adhering part; 117 ... binding part; 118 ... notch; 12 ... second fold piece; 121 ... flap; 122 ... sticking part; 123 ... sticking piece; 13, 14 ... fold line; 15 ... opening part 2 ... index sheet; 21 ... first fold; 211a to 211f ... notch; 212a to 212f ... perforation; 213a to 213f ... index tab; 22 ... second fold; 222 ... perforation; 223 ... binding part; ... index sheet; 31 ... first fold; 311a to 311f ... notch; 312a to 312f ... perforation; 313a to 313f ... index tab; 314 ... sticking part; 5 ... side of the binding portion side; 32 ... second folded piece; 321 ... flap; 322 ... perforation; 323 ... binding portion; 33, 34 ... crease; 35 ... opening 4 ... envelope; ... index tab; 43a-43f ... perforation; 44 ... fold; 45 ... flap; 46 ... opening 51 ... notch 52 ... folding allowance 53 ... end NC ... non-cutting part FL ... file

Claims (8)

An index sheet consisting of a rectangular sheet and bound at the edge of the sheet,
A first fold that is one fold formed by folding at a fold parallel to one side of the sheet;
A second fold that is the other fold formed by being folded at the fold,
In the first fold or the second fold, perforations are provided in an index tab shape so as to have end points on the fold, and a plurality of incisions provided in parallel along the fold,
Index sheet with The index sheet according to claim 1,
The cut portion has a rectangular outer shape formed by the fold line and the perforation line, and a cut line is provided on two sides of the perforation line adjacent to the fold line so as to have one uncut portion. Index sheet. The index sheet according to claim 1 or 2,
The index sheet, wherein the cut portion has a rectangular outer shape formed by the fold line and the perforation, and a cut is provided on each side of the perforation so as to have one uncut portion. The index sheet according to any one of claims 1 to 3,
The first fold piece and the second fold piece are index sheets having a sticking portion that is bonded to each other along two sides of two sides of three sides excluding the fold. The index sheet according to claim 4, further comprising:
An index sheet provided with the separation part provided along the sticking part located in the side bound as an index sheet so that it can be separated as an envelope among the sticking parts. In an envelope having a rectangular shape with four folds including a fold formed when the flap is folded,
An envelope provided with perforations in an index tab shape so as to have an end point on at least one of the folds, and a plurality of incisions arranged in parallel along the fold. An envelope according to claim 6,
The cut portion has a rectangular outer shape formed by the crease having the end point and the perforation, and a cut is provided so as to have one uncut portion on two sides of the perforation adjacent to the fold. Envelope that is made. An envelope according to claim 6 or claim 7,
The envelope in which the cut portion has a rectangular outer shape formed by the crease having the end point and the perforation, and a cut is provided on each side of the perforation so as to have one uncut portion.

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