CN112706539B

CN112706539B - File holder

Info

Publication number: CN112706539B
Application number: CN202010854942.1A
Authority: CN
Inventors: 佐佐木润; 山崎裕二; 后藤博子
Original assignee: Kokuyo Co Ltd
Current assignee: Kokuyo Co Ltd
Priority date: 2019-10-24
Filing date: 2020-08-24
Publication date: 2024-04-05
Anticipated expiration: 2040-08-24
Also published as: JP2021066110A; CN112706539A

Abstract

The invention provides a folder capable of more easily performing operation of turning a partition page. The following folders are constituted, and the folders comprise: a front cover (1) and a back cover (6); a plurality of separating sheets (2, 3, 4, 5) that divide a region between the front cover (1) and the back cover (6) into a plurality of pockets capable of accommodating sheets; the main index labels (21, 31, 41, 51) protrude outwards from the predetermined edges of the plurality of separation sheets (2, 3, 4, 5), and the positions of the main index labels are staggered along the edges; and sub index tabs (22, 32, 42, 52) protruding outward from predetermined edges of the plurality of separator sheets (2, 3, 4, 5), the positions of the sub index tabs being offset from each other along the edges, and the sub index tabs being smaller than the main index tabs (21, 31, 41, 51).

Description

File holder

Technical Field

The present invention relates to folders for storing and holding documents and other sheets.

Background

As a folder capable of storing and holding a plurality of sheets, a so-called transparent folder or a transparent jacket is known. The folder divides a region between a front cover (Japanese: a table book) and a back cover (Japanese: a table book) into a plurality of pockets by partition sheets, and can store sheets in the respective pockets in a classified manner.

The front cover, the back cover and the partition are each made of a resin sheet. Index tabs protruding outward are often provided on the outer edge of the separator (for example, refer to the following patent documents).

Prior art literature

Patent literature

Patent document 1: japanese patent application laid-open No. 2018-161796 (particularly paragraphs 0048 to 0057, FIGS. 7 to 10)

Disclosure of Invention

Problems to be solved by the invention

In a folder provided with a plurality of separation sheets, that is, three or more pockets, when sheets are to be stored in any pocket or when the stored sheets are taken out of the pockets, an operation of turning the separation sheets to open a desired pocket is required.

The invention provides a folder capable of more easily performing operation of turning a partition page.

Means for solving the problems

The folder of the invention comprises: a pair of covers; a plurality of separating sheets dividing a region between the pair of covers into a plurality of pockets capable of accommodating sheets; a main index tab protruding outward from a predetermined edge of each of the plurality of separator sheets, the respective positions being offset from each other along the edge; and a sub index tab protruding outward from a predetermined edge of each of the plurality of separator sheets, the positions of the sub index tab being offset from each other along the edge, and the sub index tab being smaller than the main index tab.

In particular, it is preferable that the arrangement of the sub index tabs provided on each of the plurality of partition sheets is focused on a range that a person can reach by moving only the finger without moving the back of the hand or the palm of the hand relative to the folder.

The secondary index tab is preferably provided at an edge of the separator sheet that intersects the edge of the primary index tab, different from the edge at which the edge is provided.

More specifically, the primary index tab is disposed on the longer side and the secondary index tab is disposed on the shorter upper side.

Alternatively, the primary index tab may be provided on the longer upper side, and the secondary index tab may be provided on the shorter side.

If the sub index tab does not protrude outward from the edge of one of the pair of covers, which is close to the sub index tab, but protrudes outward from the edge of the other of the pair of covers, which is close to the sub index tab, the sub index tab can be protected by one of the pair of covers, and the operation of holding a finger against the sub index tab from the other side and turning the partition page to open the desired pocket can be performed.

If the other of the pair of covers has a higher rigidity than one of the pair of covers and the spacer, the spacer can be turned by placing a finger against the sub index tab while holding the folder with the other of the covers being strong as a support, and operability and convenience can be further improved.

Effects of the invention

According to the present invention, a folder in which a page turning operation can be performed more easily can be realized.

Drawings

Fig. 1 is a perspective view of a folder in accordance with an embodiment of the present invention.

Fig. 2 is a front view of the folder of the embodiment.

Fig. 3 is a rear view of the folder of the embodiment.

Fig. 4 is a front view of a pair of covers of the folder of the embodiment.

Fig. 5 is an expanded view of the first separator of the folder of the embodiment.

Fig. 6 is an expanded view of the second separator of the folder of the embodiment.

Fig. 7 is a rear view showing a state in which the first separator and the second separator of the folder according to the embodiment are folded in half.

Fig. 8 is a rear view showing a state in which the second separator is received in the first separator of the folder of the embodiment, and then the second separator is overlapped on the front cover and welded to the front cover.

Fig. 9 is a sectional view taken along line A-A of the folder of the embodiment.

Fig. 10 is a B-B sectional view of the folder of the embodiment.

Fig. 11 is a C-C line sectional view of the folder of the embodiment.

Fig. 12 is a sectional view taken along line A-A showing a state in which a plurality of sheets are stored in the folder according to the embodiment.

Fig. 13 is a C-C line cross-sectional view showing a state in which a plurality of sheets are stored in the folder of the embodiment.

Fig. 14 is an expanded view of a first separator and a second separator according to a first modification of the present invention.

Fig. 15 is a front view of a folder according to a first modification of the present invention.

Fig. 16 is a rear view of a folder according to a first modification of the present invention.

Detailed Description

An embodiment of the present invention will be described with reference to the accompanying drawings. The folder of the present embodiment shown in fig. 1 to 11 is formed by dividing the area between the front cover 1 and the back cover 6 into a plurality of pockets P by a plurality of partitioning sheets 2, 3, 4, 5. The file is vertical, and the height dimension is larger than the width dimension. Further, the right and upper sides are opened, and documents and other sheets S can be taken out or put in from the right or upper side. On the other hand, the left and lower sides are closed, and the stored sheets S are held so as not to fall off.

The folder of the present embodiment includes a front cover 1, a back cover 6, and four separate sheets 2, 3, 4, 5 as the case may be. The front cover 1, the back cover 6, and the partition sheets 2, 3, 4, and 5 are made of, for example, thin sheets made of resin. The front cover 1, the back cover 6, and the partition sheets 2, 3, 4, 5 each have transparency or light transmittance, and can see through the presence of the sheets S stored in the pocket P.

As shown in fig. 1, 2 and 4, the front cover 1 has a square outline with the right and left sides longer than the upper and lower sides, respectively. The main index tab 11 protrudes outward, i.e., to the right, from the right side edge of the front cover 1.

The left end and the lower end of the front cover 1 are integrally provided with joint pieces 12 and 14, respectively. The joining pieces 12 and 14 are portions for fastening the left end and the lower end of the back cover 6 to shield the pocket P in the folder from the left and the lower. The joining piece 12 joined to the left side edge of the front cover 1 is folded back toward the back side (in other words, inward of the left side edge of the front cover 1, i.e., rightward) along the fold 121 extending in the height direction. A folding line 13 extending in the height direction parallel or substantially parallel to the fold 121 is formed at a position close to the ridge line of the fold 121. The folding lines 13 and 15 are thin grooves or ribs, and function to promote bending of the front cover 1 and the joining pieces 12 and 14 along the same. The folding lines 13 and 15 can be formed by, for example, pressing a die having a thin band-shaped scribing blade (with a blade) against a sheet material that is a blank of the front cover 1. The fold line 13 has a plurality of folds 121.

The joining piece 14 joined to the lower edge of the front cover 1 is folded back toward the back side (in other words, inward of, i.e., upward of, the lower edge of the front cover 1) along the fold 141 extending in the width direction. A folding line 15 extending in the width direction parallel or substantially parallel to the crease 141 is formed at a position close to the ridge line of the crease 141. The fold line 15 is provided in a plurality so as to sandwich the fold 141.

As shown in fig. 3 and 4, the back cover 6 has a square outline with the right and left sides longer than the upper and lower sides, respectively. The height dimension of the back cover 6 is equal to the height dimension of the front cover 1 except for the engaging pieces 14, but the width dimension of the back cover 6 is slightly larger than the width dimension of the front cover 1 except for the main index tab 11 and the engaging pieces 12. The upper half of the right side edge of the back cover 6 is notched (notched 61) so as to be recessed inward, i.e., to the left by about several mm, from the upper end and the lower half. The upper edge of the back cover 6 is notched (notched 62) so as to be recessed inward, i.e., downward, by about several mm from the left end and the right half.

The middle portion of the left side of the back cover 6 is notched (notch 63) so as to be recessed inward, i.e., to the right side by about several mm from the upper end portion and the lower end portion. The middle of the lower edge of the back cover 6 is also notched (notched 64) so as to be recessed inward, i.e., upward, by about several mm from the right and left end portions.

As shown in fig. 9 to 13, the back cover 6 has a thickness stronger than the front cover 1 and the partition sheets 2, 3, 4, 5, that is, has higher rigidity and lower flexibility than the front cover 1 and the partition sheets 2, 3, 4, 5. The corners of the left and right rear covers 6 located below and below the left of the cutout 64 function as protecting portions 65 and 66 for protecting the folder and the sheets S stored therein.

The four separating sheets 2, 3, 4, 5 are arranged in the order of the separating sheet 2, the separating sheet 3, the separating sheet 4, and the separating sheet 5 from the front side of the folder, i.e., the front cover 1, toward the back side of the folder, i.e., the back cover 6. The separator 2 and the separator 5 are integrally connected to form a single separator 7, and the separator 3 and the separator 4 are integrally connected to form a single separator 8.

As shown in fig. 5 and 7, the first separator 7 constituting the separator 2 and the separator 5 is formed by connecting the left side edge of the separator 2 and the left side edge of the separator 5 to each other via the connecting portion 71. The main index tab 21 protrudes outward, i.e., rightward, from the right side edge of the separator 2. The main index tab 51 protrudes outward, i.e., rightward, from the right side edge of the partition 5.

The upper portion of the partition sheet 2, which is offset to the left, is retracted inward, i.e., downward, by about several mm from the left end portion and the right half portion. From this portion, the sub index tab 22 protrudes outward, i.e., upward. Similarly, the upper portion of the partition 5, which is offset to the left, is retracted inward, i.e., downward, by about several mm from the left end portion and the right half portion. From this portion, the sub index tab 52 protrudes outward, i.e., upward. The secondary index tabs 22, 52 are significantly smaller in size than the primary index tabs 21, 51.

The connection portion 71 is connected to each of the left side edge of the separator 2 and the left side edge of the separator 5. As shown in fig. 7, the first separator 7 is folded in half along a crease 711 extending in the height direction at the center of the connecting portion 71 so that the right sides of the two separator sheets 2 and 5 overlap each other. A folding line 72 extending in the height direction parallel or substantially parallel to the crease 711 is formed at a position close to the ridge line of the crease 711. The fold line 72 is a thin groove or rib, and serves to promote bending of the first separator 7 and the connecting portion 71 along the groove. The fold line 72 can be formed by, for example, pressing a die having a thin band-shaped scribing blade against a sheet material serving as a blank of the first separator 7. The fold line 72 is provided in a plurality in a manner to sandwich the fold 711.

The connecting portions 71 are provided in a vertically paired manner, and a hole or slit 73 penetrating the separator 7 is formed therebetween.

As shown in fig. 6 and 7, the second separator 8 constituting the separator 3 and the separator 4 is formed by connecting the left side edge of the separator 3 and the left side edge of the separator 4 to each other via a connecting portion 81. The main index tab 31 protrudes outward, i.e., rightward, from the right side edge of the separator 3. The main index tab 41 protrudes outward, i.e., rightward, from the right side edge of the partition sheet 4.

The upper portion of the partition sheet 3, which is offset to the left, is retracted inward, i.e., downward, by about several mm from the left end portion and the right half portion. From this portion, the sub index tab 32 protrudes outward, i.e., upward. Similarly, the upper portion of the partition 4, which is offset to the left, is retracted inward, i.e., downward, by about several mm from the left end portion and the right half portion. From this portion, the sub index tab 42 protrudes outward, i.e., upward. The secondary index tabs 32, 42 are significantly smaller in size than the primary index tabs 31, 41.

The connection portion 81 is connected to each of the left side edge of the partition sheet 3 and the left side edge of the partition sheet 4. As shown in fig. 7, the second separator 8 is folded in half along a crease 811 extending in the height direction at the center of the connecting portion 81 so that the right sides of the two separator sheets 3, 4 overlap each other.

The process for manufacturing the folder according to the present embodiment will be described. First, as shown in fig. 7, the first separator 7 and the second separator 8 are folded. Next, the second separator 8 is housed in the first separator 7. At this time, as shown in fig. 8, the connecting portion 81 of the second separator 8 protruding outward, i.e., leftward, from the left side edges of the two separator sheets 3, 4 is inserted into the through hole or slit 73 formed in the first separator 7. As a result, the connecting portion 81 protrudes outward, i.e., leftward, from the left side edges of the two partitioning sheets 2, 5 of the first partitioning body 7.

Next, as shown in fig. 8, the set of the first and second separators 7, 8 is overlapped on the back surface of the front cover 1. Then, the protruding portion 81 of the second separator 8 is fastened to the joining piece 12 of the front cover 1 by ultrasonic welding or the like. The portion 813 where the protruding portion 81 is welded to the joining piece 12 is located on the left side, which is the outside of the ridge line of the fold 121 of the root portion of the joining piece 12 (before folding) of the front cover 1, and on the right side, which is the inside of the fold line 13.

Then, the back cover 6 is overlapped on the back surface of the front cover 1 and the separators 7, 8. Then, as shown in fig. 3, 9 and 10, the joining piece 12 and the protruding portion 81, which are fastened to each other, are folded inward, i.e., rightward along the folds 121 and 811 extending in the height direction, and wound around the back surface side of the back cover 6, and then the joining piece 12 is fastened to the left end portion of the back cover 6 by ultrasonic welding or the like. The portion 122 where the joining sheet 12 is welded to the back cover 6 is located inward, i.e., rightward, of the fold line 13 formed in the joining sheet 12.

As shown in fig. 3 and 11, the joining piece 14 of the front cover 1 is folded inward, that is, upward along the fold 141 extending in the width direction, and wound around the back surface side of the back cover 6, and then the joining piece 14 is fastened to the lower end portion of the back cover 6 by ultrasonic welding or the like. The portion 142 where the joining sheet 14 is welded to the back cover 6 is located inward or upward of the fold line 15 formed in the joining sheet 14.

The folder of the present embodiment includes: a pair of covers 1, 6; the folded first separator 7 constitutes the partition sheets 2, 5 that partition the area between the pair of covers 1, 6 into a plurality of pockets P in which sheets S can be accommodated; and a second separator 8 that is housed in the first separator 7 and that forms the partition sheets 3, 4 that partition the area between the pair of covers 1, 6 into a plurality of pockets P in which sheets S can be housed, and that has a protruding portion 81 that protrudes from the ridge line of the fold 711 of the first separator 7 and is fastened to either cover 1 in this state.

More specifically, a through hole or slit 73 penetrating the first separator 7 is provided near the edge line of the crease 711 of the first separator 7, and the protruding portion 81 of the second separator 8 is configured to protrude outward from the edge line of the crease 711 of the first separator 7 through the through hole or slit 73.

The second spacer 8 secures its tab 81 relative to the cover 1 without being dislodged from between the covers 1, 6. The connecting portion 71 of the first separator 7 is wrapped around or bites the left end portion of the second separator 8, and even if an external force acts on the separator 7, the first separator 7 is blocked by the second separator 8 and does not come out from between the covers 1 and 6. In summary, a folder with durability and convenience in which the partition sheets 2, 3, 4, 5 are not easily separated can be realized.

The second separator 8 is folded and stored in the first separator 7 to form two separation sheets 3 and 4. Therefore, the number of the separator sheets 2, 3, 4, 5 and the number of the pockets P included in the folder are increased, and the plurality of sheets S can be finely sorted and stored.

The protruding portion 81 of the second separator 8 is folded over, the ridge line of the fold 812 is positioned in the vicinity of the edge 121 of either one of the pair of covers 1 and 6, and the protruding portion 81 is fastened to the cover 1, so that the depth of the pocket P on the left side, which is the direction in which the fold 812 of the second separator 8 is located, becomes deeper, and it is easier to insert the sheets S into the pocket P.

Since the lower end portions, which are the end portions intersecting the left end portions, which are the end portions of the protruding portions 81 of the pair of covers 1, 6 to which the second separator 8 is fastened, are connected to each other via the joining piece 14, the lower end portions of the folders are closed, and separation sheets 2, 3, 4, 5 and sheets S can be prevented from coming out from the lower end portions.

The folder according to the present embodiment includes: a pair of covers 1, 6; a plurality of partition sheets 2, 3, 4, 5 dividing a region between the pair of covers 1, 6 into a plurality of pockets P in which sheets S can be accommodated; the main index tabs 21, 31, 41, 51 protrude outward from predetermined edges of the plurality of separator sheets 2, 3, 4, 5, and the positions of the respective separator sheets are offset from each other along the edges; and sub index tabs 22, 32, 42, 52 protruding outward from predetermined edges of the plurality of separator sheets 2, 3, 4, 5, the respective positions being offset from each other along the edges, and the size of the sub index tabs being smaller than that of the main index tabs 21, 31, 41, 51.

In the present embodiment, the main index labels 11, 21, 31, 41, 51 provided on the front cover 1 and the partition sheets 2, 3, 4, 5 are arranged in the height direction along the right side edges of the front cover 1 and the partition sheets 2, 3, 4, 5. The main index tabs 11, 21, 31, 41, 51 do not overlap each other in front view and rear view. As shown in fig. 3, the main index tabs 11, 21, 31, 41, and 51 protrude slightly outward, i.e., rightward, from the right side edge, i.e., the edge of the back cover 6 at the position facing the notch 61. That is, the main index tabs 11, 21, 31, 41, 51 are partially exposed without being completely blocked by the back cover 6 in rear view.

The sub index tabs 22, 32, 42, 52 provided on the respective barrier sheets 2, 3, 4, 5 are provided on the upper side which is the edge intersecting the right side and which is different from the edge on which the main index tabs 21, 31, 41, 51 are provided, and are arranged in the width direction along the upper side of the barrier sheets 2, 3, 4, 5. The sub index tabs 22, 32, 42, 52 do not overlap each other in the front view and the rear view. As shown in fig. 3, the sub index tabs 22, 32, 42, and 52 protrude outward, i.e., upward, from the upper edge, i.e., the upper edge of the back cover 6 at positions facing the notch 62 formed in the upper edge. That is, the sub index tabs 22, 32, 42, 52 are exposed without being blocked by the back cover 6 in rear view. On the other hand, as shown in fig. 2, the sub index tabs 22, 32, 42, 52 do not protrude outward, i.e., upward, from the upper edge of the front cover 1. That is, the secondary index tabs 22, 32, 42, 52 are protected by the front cover 1.

The arrangement of the secondary index tabs 22, 32, 42, 52 is focused on a range of widths of tens of mm (e.g., about 45 mm) that a person can reach by moving only a finger without moving the back or palm of the hand relative to the folder.

According to the present embodiment, the desired pocket P can be easily opened by supporting the rear cover 6 with a strong back cover, for example, by holding the folder with the left hand, and by performing an operation of holding the fingers of the left hand against the sub index labels 22, 32, 42, 52 from the back side and turning the partition sheets 2, 3, 4, 5. In this case, the main index tabs 11, 21, 31, 41, and 51 can be visually checked and operated.

The folder according to the present embodiment includes: a pair of covers 1, 6; the partition sheets 2, 3, 4, 5 divide the area between the pair of covers 1, 6 into a plurality of pockets P in which sheets S can be accommodated; and joining pieces 12, 14 provided on one 1 of the pair of covers 1, 6, folded over, and the ridge line of the fold 122 thereof positioned outside the edges 63, 64 of the other 6 of the pair of covers 1, 6, and fastened to the end of the other 6 of the pair of covers 1, 6 in this state.

More specifically, the joining pieces 12 and 14 are provided on a left side edge which is one edge of the pair of covers 1 and 6 and on a lower edge which is the other edge intersecting the left side edge. The former joint piece 12 is fastened to one end portion, i.e., the left end portion, of the other 6 of the pair of covers 1, 6. As shown in fig. 9, in the stage where the sheets S are not stored, the ridge line of the fold 121 of the joining sheet 12 is located outside, i.e., to the left side of the left side 63 of the back cover 6. The latter engagement piece 14 is fastened to the other end of the other body 6, i.e. the lower end, which is different from the left end. As shown in fig. 11, in the stage where the sheets S are not stored, the ridge line of the fold 141 of the joining sheet 14 is located outside, i.e., below, the lower edge of the back cover 6.

According to the present embodiment, when a plurality of sheets S (for example, fifty or more sheets) are stored in the folder, the front cover 1 is displaced away from the back cover 6 while being deformed so that the left end portion of the front cover 1 enters the left cutout 63 of the back cover 6 as shown in fig. 12 and the lower end portion of the front cover 1 enters the lower cutout 64 of the back cover as shown in fig. 13, whereby the volume of the pocket P can be enlarged.

On the other hand, as shown in fig. 9 to 11, when the number of sheets S to be stored is small, the front cover 1 approaches the back cover 6, and the volume of the pocket P is reduced so that the front cover 1, the partition sheets 2, 3, 4, 5, and the back cover 6 are in close contact with each other. Accordingly, friction generated between the sheets S stored in the pocket P and the front cover 1, the partition sheets 2, 3, 4, 5, or the back cover 6 increases, and the sheets S can be effectively prevented from falling off.

Since the folding lines 13 and 15 extending parallel or substantially parallel to the folds 121 and 141 and promoting the bending of one 1 are provided at the positions of one 1 of the pair of covers 1 and 6 close to the edge line of the folds 121 and 141 at the root portions of the joining pieces 12 and 14, the pair of covers 1 and 6 are easily deformed so that the distance between the pair of covers 1 and 6 is increased when a plurality of sheets S are stored.

One 1 and the other 6 of the pair of covers 1, 6 are formed separately without being integrally formed. The folding lines 13 and 15 are not provided on the other side 6. In addition, since the other cover 6 of the pair of covers 1, 6 has higher rigidity than the one cover 1 of the pair of covers 1, 6 and the partition sheets 2, 3, 4, 5, the stored sheets S can be stored and protected by the strong cover 6, and bending or wrinkling of the sheets S can be suppressed.

The other 6 of the pair of covers 1, 6 has a protection portion 65, 66 provided at a corner portion thereof, which is exposed without being covered by one of the pair of covers 1, 6. As shown in fig. 12 and 13, when a plurality of sheets S are stored, the protecting portions 65 and 66 protrude outward, i.e., leftward and downward, from one 1 of the pair of covers 1 and 6. The protection parts 65 and 66 help to protect the cover 1 and the separator sheets 2, 3, 4, 5 of the folder and the stored sheets S when the folder is erroneously dropped.

Furthermore, the present invention is not limited to the embodiments described in detail above. For example, in the above embodiment, the first separator 7 and the second separator 8 are configured separately, but it is conceivable that the first separator 7 and the second separator 8 are connected and integrated via the connecting portion 9 as shown in fig. 14.

In the illustrated example, the lower edge of the separator 2 and the lower edge of the separator 3 are connected via the connecting portion 9, and the lower edge of the separator 4 and the lower edge of the separator 5 are connected via the connecting portion 9. In addition, the left side edge of the separator 3 and the left side edge of the separator 4 are connected via the connecting portion 82. A slit 814 shaped like a コ surrounding a three-part is provided in the middle of the partition sheet 3 and the partition sheet 4 of the second separator 8, and the inside thereof is provided with a protruding portion 81.

When the partition sheets 2, 3, 4, 5 of the folder are configured from the integrated separators 7, 8, the upper sides of the partition sheets 2, 5 are folded along the fold 91 of the connecting portion 9 so as to overlap the upper sides of the partition sheets 3, 4, and then the right sides of the partition sheets 2, 3 are folded along the fold 711, 821 of the connecting portion 71, 82 so as to overlap the right sides of the partition sheets 4, 5. In summary, the integrated separators 7, 8 are folded at right angles in four or cross.

The folder of the above embodiment is a vertical folder having right and left sides longer than upper and lower sides, and has main index labels 11, 21, 31, 41, 51 provided on the right side and sub index labels 22, 32, 42, 52 provided on the upper side. In contrast, it is needless to say that a horizontal folder can be formed in which the right and left sides are shorter than the upper and lower sides as shown in fig. 15 and 16.

The basic structure of the horizontal folder illustrated in the drawings corresponds to the structure obtained by tilting the vertical folder of the above embodiment counterclockwise. The width dimension of the horizontal folder is larger than the height dimension, and the upper side is opened, so that the sheets S can be taken out or put in from the upper side. On the other hand, the left, right, and lower sides are closed, and the stored sheets S are held so as not to fall off. That is, the joining piece 18 connected to the left and right side edges of the front cover 1 is folded back along the fold 181 and joined to the left and right end portions of the back cover 6, and the joining piece 16 connected to the lower edge of the front cover 1 is folded back along the fold 181 and joined to the lower end portion of the back cover 6. Fold lines 17 and 19 are formed in the front cover 1 and the joining sheets 16 and 18 at positions close to the edge lines of the folds 161 and 181.

The main index tags 11, 21, 31, 41, 51 are disposed on the upper side. In rear view, the main index tabs 11, 21, 31, 41, 51 protrude slightly upward from the upper edge of the cutout 67 formed in the back cover 6. The secondary index tabs 22, 32, 42, 52 are disposed on the left side. The secondary index tabs 22, 32, 42, 52 project to the left from the left side of the cutout 68 formed in the back cover 6 in rear view. The lower right and lower left corner of the back cover 6 functions as a protecting portion 69.

It is not necessary that the fold lines 13, 15, 17, 19 be formed in the cover 1 of the file.

In addition, the specific structure of each portion may be variously modified within a range not departing from the gist of the present invention.

Description of the reference numerals

1. 6 … A pair of covers (front cover, back cover)

12. 14 … joint piece

121. 141 … crease

13. 15 … fold line

2. 3, 4, 5 … separating sheets

21. 31, 41, 51, … main index tag

22. 32, 42, 52, … secondary index tag

6 … back cover

63. 64 … edge (left side, lower edge)

7 … first separator

711 … crease

73 … through holes or slits

8 … second separator

812 … crease

P … pocket

S … paper sheets

Claims

1. A folder is provided with:

a pair of covers;

a plurality of separating sheets dividing a region between the pair of covers into a plurality of pockets capable of accommodating sheets;

a main index tab protruding outward from a predetermined edge of each of the plurality of separator sheets, the respective positions being offset from each other along the edge; and

The sub index tab protrudes outward from a predetermined edge of each of the plurality of separator sheets, positions of the sub index tab are shifted from each other along the edge, and the sub index tab is smaller than the main index tab,

the primary index tab is visible from the front cover side of the pair of covers,

the secondary index tab is visible from the back cover side through a cutout formed in the back cover of the pair of covers, but does not protrude outward from the edge of the front cover and is not exposed at the front cover side.

2. A folder is provided with:

a pair of covers;

the arrangement of the sub index tabs provided in each of the plurality of separator sheets is focused on a range of a width of several tens mm that a person can reach by moving only a finger without moving the back of the hand or the palm of the hand relative to the folder,

the back cover of the pair of covers has a higher rigidity than the front cover of the pair of covers and the spacer.

3. The folder according to claim 1 or 2,

the secondary index tab is disposed at an edge of the separator sheet that intersects the edge of the primary index tab, different from the edge at which the edge is disposed.

4. A folder according to claim 3,

the main index tag is disposed on the longer right side,

the auxiliary index tag is arranged on the upper side which is shorter than the side edge, and the left side edge and the lower side edge are closed.

5. A folder according to claim 3,

the main index tag is arranged on the longer upper side,

the secondary index tab is disposed on the shorter right side,

the lower and left sides are closed.