CN109397924B

CN109397924B - File folder

Info

Publication number: CN109397924B
Application number: CN201810868284.4A
Authority: CN
Inventors: 扶川祥平
Original assignee: Kokuyo Corp
Current assignee: Kokuyo Corp
Priority date: 2017-08-18
Filing date: 2018-08-02
Publication date: 2021-06-25
Anticipated expiration: 2038-08-02
Also published as: JP6933044B2; CN109397924A; JP2019034488A

Abstract

The invention provides a file which is suitably supported on a binding tool and/or other files with the binding tool without removing a back cover. The folder is provided with: a seal ridge (B); a cover provided with a spine holding part capable of holding the spine (B); and a pocket sheet which is stop-jointed to the cover and formed into a bag shape. The spine seal holding part is provided with a hole which can be used as a binding hole, the spine seal (B) is provided with a spine seal main body and a detachable piece (B2) having a part overlapping with the hole, and the detachable piece (B2) is configured to be detachable from the spine seal main body (B1). Such a file can provide a file configured to be appropriately supported by a binder and/or another file having a binder without removing the spine (B).

Description

File folder

Technical Field

The present invention relates to a folder suitable for use in an office or the like.

Background

Conventionally, various folders having pocket sheets (english: pocket sheets) formed in a bag shape have been known (for example, refer to patent document 1).

If a through hole (パンチ hole in japanese) is provided at a predetermined position of the above-described folder, the folder itself can be held by various binding tools or other folders having various binding tools.

However, if the folder has a back cover (japanese back), the folder may be undesirably held by a binding tool or another folder having a binding tool after the back cover is removed.

Documents of the prior art

Patent document

Patent document 1: japanese utility model registration No. 3139118

Disclosure of Invention

Problems to be solved by the invention

The present invention has been made in view of the above circumstances, and provides a file configured to be appropriately supported by a binding tool and/or another file having a binding tool without removing a spine.

Means for solving the problems

That is, the present invention has the following configuration.

The invention described in claim 1 is a folder, including: sealing ridges; the envelope (Japanese: watch) is provided with a spine holding part for holding the spine; and a pocket sheet which is engaged with the cover and formed into a bag shape, wherein the spine-sealing holding portion is provided with a hole which can be used as a binding hole, the spine sealing comprises a spine-sealing main body and a detachable sheet having a part overlapping with the hole, and the detachable sheet is configured to be detachable from the spine-sealing main body.

The invention described in claim 2 is the file according to claim 1, wherein the spine seal holding part includes an outer sheet and an inner sheet disposed inside the outer sheet, the spine seal is held between the outer sheet and the inner sheet, the holes are provided in the outer sheet and the inner sheet so as to be capable of communicating with each other, and the inner sheet is a part of the cover which overlaps with the outer sheet.

The invention described in claim 3 is the folder described in

claim

1 or 2, wherein the folder includes a substantially rectangular front cover (japanese timepiece) and a substantially rectangular rear cover (japanese timepiece) as the cover, the front cover and the rear cover are connected via the outer side sheets attached to outer surfaces of the front cover and the rear cover, and the inner side sheet is a portion of the rear cover which overlaps the outer side sheet and a portion of the front cover which overlaps the outer side sheet.

The invention described in claim 4 is the folder described in claim 3, wherein a seal ridge insertion opening into which the seal ridge can be inserted is formed between an inner end edge of the front seal and an inner end edge of the rear seal.

The invention described in claim 5 is the folder described in

claim

1, 2, 3, or 4, wherein the detachable sheet is connected to the spine sealing main body via a cutting guide line, and the detachable sheet is configured to be detachable from the spine sealing main body by cutting the cutting guide line.

ADVANTAGEOUS EFFECTS OF INVENTION

As described above, according to the present invention, it is possible to provide a file configured to be able to be suitably supported by a binding tool and/or another file having a binding tool without removing a spine.

Drawings

Fig. 1 is a perspective view showing one embodiment of the present invention.

Fig. 2 is a perspective view showing the inner surface side in the developed state in this embodiment.

Fig. 3 is a perspective view showing the outer surface side in the expanded state in this embodiment.

Fig. 4 is a development view for explaining the seal ridge in this embodiment.

Fig. 5 is a development view for explaining the seal ridge in this embodiment.

Fig. 6 is a front view of the inner surface side showing the developed state in this embodiment.

Fig. 7 is a cross-sectional view taken along line X-X in fig. 6.

Fig. 8 is a partial enlarged view of Y in fig. 6.

Fig. 9 is a perspective view for explaining one use example of the embodiment.

Fig. 10 is a development view for explaining a seal ridge according to another embodiment.

Fig. 11 is a development view for explaining a seal ridge according to another embodiment.

Fig. 12 is a development view for explaining a seal ridge as another embodiment.

Fig. 13 is a development view for explaining a seal ridge according to another embodiment.

Fig. 14 is a development view for explaining a seal ridge according to another embodiment.

Fig. 15 is a development view for explaining a seal ridge according to another embodiment.

Fig. 16 is a development view for explaining a seal ridge according to another embodiment.

Fig. 17 is a development view for explaining a seal ridge according to another embodiment.

Description of the reference numerals

1 … front seal

2 … Back seal (front cover)

3 … outer side panel

B … seal ridge

b1 … spine sealing body

b2 … detachable sheet

H … seal ridge holding part

h1, h2 and h3 … holes

P … pocket sheet

Detailed Description

An embodiment of the present invention will be described below with reference to fig. 1 to 9.

This embodiment is an embodiment in which the present invention is applied to a folder a having a plurality of pocket sheets P.

This folder a can be used in a state of being independent of itself, but as shown in a use example shown in fig. 9, it is configured to be supported by another folder J having a binder E. In other words, even in a state where the binding bar E1 of the binder E in another folder J is inserted into the holes h1, h2, and h3 of the folder a of the present invention, the folder a can be used without impairing the storage function.

Fig. 9 is a diagram showing only an example in which the folder a is supported by another folder J. That is, the file a of the present embodiment can be supported by various files having different binding tools from those of fig. 9, and can also be supported by various binding tools having no cover or the like.

The folder A is provided with: a ridge B capable of functioning as an index; a front seal 1 and a back seal 2 as a cover, wherein the front seal 1 and the back seal 2 as a cover are provided with a seal ridge holding part H capable of holding the seal ridge B; and a plurality of pocket sheets P which are formed into a bag shape by being engaged and fixed to the inner surface of the back seal 2 by welding. The front seal 1 and the back seal 2 are connected by an outer sheet 3 attached to the outer surfaces of the front seal 1 and the back seal 2 by welding. A seal ridge insertion opening g through which the seal ridge B can be inserted into the seal ridge holding portion H is formed between the inner end edge 1e of the front seal 1 and the inner end edge 2e of the rear seal 2. The ridge insertion port g is in the form of a slit (slit) extending in the vertical direction.

The folder a will be described in detail below.

The seal ridge B is a paper member capable of recording characters and the like on the outer surface. As shown in fig. 4 and 5, the seal ridge B has a substantially rectangular shape that is long in the vertical direction in the expanded state. The folded line f linearly extending in the vertical direction is provided at the center portion in the left-right direction in the unfolded state of the seal ridge B. The seal ridge B includes: a surface side region b11, the surface side region b11 being joined to the inner surface of the outer sheet 3 and covering the outer surface side of the front seal 1; and a back side region b12, the back side region b12 being joined to the inner surface of the outer sheet 3 and covering the outer surface side of the back cover 2. The front side region b11 and the back side region b12 are provided on the left and right sides with the folding line f as a boundary. The seal ridge B includes: a main body b1 of the main part, the main body b1 of the main body b being written with characters and the like on the outer surface; and a releasable flap b2, the releasable flap b2 having a portion overlapping with the holes h3, h1, h2 provided to the outer side panel 3, the front seal 1 and the rear seal 2, respectively.

The spine B is configured such that the release tab B2 can be released from the spine main body B1. In this embodiment, the detachable sheet b2 has a substantially rectangular shape elongated vertically and horizontally at the center of the spine sealing main body b1 in the unfolded state. The releasable tab b2 is connected to the spine body b1 via a cutting guide line s. The cutting guide line s is formed of a plurality of slits provided intermittently. The cutting guide wire s is called a so-called "sewing needle eye (japanese: ミシン mesh)". The detachable piece b2 is configured to be detachable from the seal main body b1 by cutting the cutting guide line s. The main body b1 of the ridge after the separation piece b2 has been separated is rectangular and annular in the unfolded state, and a rectangular communication portion b1a is formed in the central portion. Further, the guide wire s of the present embodiment includes: curved slits s1 of the same length provided at the corners of the four portions in the expanded state; and a plurality of linear slits s2 having the same length are arranged between the curved slits s 1. After the detachable piece b2 is detached from the spine main body b1, as shown in fig. 5 and 9, in a state where the folder a is supported by the binding E of another folder J, a communicating portion b1a through which the binding bar E1 of the binding E of the other folder J can pass is formed in the spine main body b 1. Note that, in fig. 1 and 9, the seal land B is shown in color for convenience of description.

The front seal 1 is a rectangular sheet-like member made of synthetic resin. The front seal 1 has a plurality of (two) holes h1 that can be used as binding holes in the region where the spine B is located. The two holes h1 are provided at predetermined intervals from top to bottom. These holes h1 are also called through holes and are circular holes.

The back cover 2 as a cover is a rectangular sheet-like member made of synthetic resin. The back cover 2 has a plurality of (two) holes h2 that can be used as binding holes in the region where the spine B is located. The two holes h2 are provided at predetermined intervals from top to bottom. These holes h2 are also called through holes and are circular holes. The thickness dimension of the back seal 2 is set longer than that of the front seal 1. In other words, the rear seal 2 is set thicker than the front seal 1.

The outer sheet 3 constitutes a seal ridge holding portion H capable of holding the seal ridge B in cooperation with the front seal 1 and the rear seal 2. The outer sheet 3 is a light-transmitting sheet, in this embodiment, a transparent sheet, so that characters, figures, and the like shown in the seal ridge B can be visually recognized from the outside. The outer sheet 3 includes: a front surface side region 31, the front surface side region 31 being a region overlapping with the front seal 1; and a back surface side region 32, the back surface side region 32 being a region overlapping with the back seal 2. The outer sheet 3 has a substantially rectangular shape extending in the vertical direction in the unfolded state. As shown in fig. 3, substantially the entire outer peripheral edge of the outer sheet 3 is welded to the outer surface of the front seal 1 and the outer surface of the back seal 2. In other words, a welded portion t welded to the outer surface of the front seal 1 and the outer surface of the rear seal 2 is provided at the outer peripheral edge of the outer sheet 3. The outer sheet 3 has a plurality of (two) holes h3 that can be used as binding holes. The two holes h3 are provided at predetermined intervals from top to bottom. These holes h3 are called through holes and are circular holes. The outer sheet 3 includes a fold portion 3a at a central portion in the left-right direction in the unfolded state, that is, at a boundary portion between the front side region 31 and the back side region 32. The folding portion 3a is a portion that is folded when the folder a assumes a closed state.

The inner edge 1e of the front seal 1 and the inner edge 2e of the rear seal 2 facing the ridge insertion opening g are provided with recessed

portions

1k, 2k at predetermined positions. By providing the front seal 1 and the back seal 2 with the recessed

portions

1k, 2k, protruding sheet-like finger hooking (finger hooking け, japanese)

portions

1y, 2y that can be easily turned over by fingers are formed at the

inner end edges

1e, 2e of the front seal 1 and the back seal 2. That is, the recessed

portions

1k and 2k of the front seal 1 and the rear seal 2 facilitate insertion of the seal ridge B into the seal ridge holding portion H through the seal ridge insertion port g.

The seal retaining portion H is a portion capable of retaining the seal B. The ridge holding portion H includes the outer sheet 3, a portion 1a of the front seal 1 overlapping the outer sheet 3, which is an inner sheet disposed inside the outer sheet 3, and a portion 2a of the back seal 2 overlapping the outer sheet 3. The spine-sealing holding portion H can hold the spine-sealing B by sandwiching the spine-sealing B between the outer sheet 3 and the part 1a of the front seal 1 and between the outer sheet 3 and the part 1a of the back seal 2.

Holes h3, h1, and h2 which can be used as binding holes are provided in the outer sheet 3, the front seal 1, and the rear seal 2 so as to be able to communicate with each other. That is, the outer sheet 3 is provided with holes h3 that can be used as binding holes at a plurality of locations (four locations). In the outer sheet 3, two holes h3 are provided at a predetermined interval in the vertical direction in the front surface side region 31 which is a region overlapping with the front seal 1. The outer sheet 3 has two holes h3 provided at a predetermined interval in the vertical direction in the back surface side region 32 which is a region overlapping with the back seal 2. The holes h3, h1, and h2 provided in the outer sheet 3, the front seal 1, and the rear seal 2 allow, for example, a binding bar E1 (see fig. 9) of the binder E and/or binding legs (not shown) of other binders to communicate with each other.

The pocket sheet P is a synthetic resin member. The pocket sheet P is formed in a bag shape using a film (english: film) material. The pocket sheet P has a storage space sp capable of storing therein the paper D as a storage material. The storage is not limited to the paper D, and is not limited to the material and/or shape. In this embodiment, the storage space sp can mainly store a rectangular sheet-like storage material typified by paper D. The pocket sheet P is in a longitudinal rectangular shape. The inner end edge pe of the pocket sheet P is engaged with the inner surface side of the back seal 2 at a welded portion c extending substantially linearly in the vertical direction.

The pocket sheet P includes: a pocket sheet main body p1 having an opening k at an upper end and a storage space sp formed therein, the pocket sheet main body p 1; and a welded portion c formed at an inner end edge pe of the pocket sheet main body p1 so as to connect the pocket sheet main body p1 and the back seal 2.

The pocket sheet main body p1 is set to a size that allows a4 size paper D to be stored in the storage space sp.

The welding portion c is formed at the inner end edge pe of the pocket sheet main body p1 as a result of welding the pocket sheet main body p1 to the inner surface of the back seal 2 by welding means (not shown). The welded portion c has a recessed portion c2 recessed from the inner end pe toward the outer end pg of the pocket sheet main body p 1. At least a part of the hole h2 formed in the rear seal 2 is set to be located in the region r surrounded by the recessed portion c 2. In this embodiment, approximately half of the hole h2 formed in the rear seal 2 is set to be located in the region r surrounded by the recessed portion c 2.

The welded portion c includes a plurality of welding points c 1. The welding portion c is formed by arranging a plurality of welding points c1 at intervals along a virtual straight line L extending in the vertical direction. Further, the concave portion c2 is disposed between the specific welding points c1 in the plurality of welding points c 1.

As shown in the enlarged view of fig. 8, the recessed portion c2 includes: an upper edge portion c 21; a lower edge portion c22 substantially parallel to the upper edge portion c 21; and a side portion c23 extending in the up-down direction in such a manner as to connect one end of the upper edge portion c21 with one end of the lower edge portion c 22. In this embodiment, the upper edge portion c21, the lower edge portion c22, and the side edge portion c23 are welded with respect to the back seal 2.

As described above, the folder a according to the present embodiment includes: sealing a ridge B; a front seal 1 and a back seal 2 as covers, each of the front seal 1 and the back seal 2 having a seal ridge holding part H capable of holding the seal ridge B; and a pocket sheet P which is engaged to the back seal 2 and is formed into a bag shape. The back seal holding portion H includes an outer sheet 3 and a front seal 1 and a back seal 2 as inner sheets disposed inside the outer sheet 3. The spine seals B are held between the outer sheet 3 and the front and

rear seals

1 and 2, and holes h3, h1, and h2 that can be used as binding holes are provided in the outer sheet 3, the front and

rear seals

1 and 2 so as to be able to communicate with each other. The spine B includes a spine main body B1 and a detachable piece B2 having a portion overlapping with the holes h1, h2, and h3, and the detachable piece B2 is configured to be detachable from the spine main body B1. Therefore, it is possible to provide the file a configured to be able to be appropriately supported by the binder and/or another file having the binder without removing the spine B. That is, since the spine B has the releasable piece B2 having a portion overlapping the holes h1, h2, and h3, the holes h1, h2, and h3 can smoothly communicate with each other when the user releases the releasable piece B2 from the spine body B1. Therefore, the file a itself can be suitably supported by the binder and/or other files having the binder while leaving the spine main body b 1.

The portion 1a of the front seal 1 overlapping the outer sheet 3 constitutes an inner sheet, and the portion 1a of the back seal 2 overlapping the outer sheet 3 constitutes an inner sheet. Therefore, the seal ridge B can be provided at an appropriate position that can be used as an index.

The folder a includes a substantially rectangular front cover 1 and a substantially rectangular rear cover 2, and the front cover 1 and the rear cover 2 are connected to each other via an outer sheet 3 attached to outer surfaces of the front cover 1 and the rear cover 2. Therefore, the purpose of connecting the front seal 1 and the rear seal 2 by the outer sheet 3 and the purpose of providing the seal retaining portion H can be achieved at a time, as well as providing the seal B at an appropriate position that can be used as an index.

A seal ridge insertion opening g through which the seal ridge B can be inserted into the seal ridge holding portion H is formed between the inner end edge 1e of the front seal 1 and the inner end edge 2e of the rear seal 2. Therefore, the seal ridge B can be appropriately inserted from the inner surface sides of the front seal 1 and the back seal 2.

The thickness dimension of the back seal 2 is set longer than that of the front seal 1. Therefore, the user can easily handle the front seal 1, and the back seal 2 can easily set the strength and/or rigidity required for welding the pocket sheet P.

Substantially the entire outer peripheral edge of the outer sheet 3 is welded to the outer surface of the front seal 1 or the outer surface of the back seal 2. Therefore, the inserted seal ridge B is difficult to fall out of the seal ridge holding portion H.

The detachable piece b2 is connected to the main seal body b1 via a cutting guide line s, and the detachable piece b2 can be detached from the main seal body b1 by cutting the cutting guide line s. Therefore, the operation of detaching the detachable piece b2 from the spine sealing main body b1 can be performed appropriately.

The present invention is not limited to the embodiments described in detail above.

The cover is not limited to the back cover, and may be a front cover. The front cover and the rear cover of the folder may be provided separately.

The pocket sheet does not necessarily have to be provided in plural, and may be a single sheet.

The spine seal holding portion may be provided with a hole used as a binding hole. That is, the spine seal holding portion is not limited to the inner side sheet and the member including the inner side sheet, and may be a single sheet-like member, for example.

The inner sheet may not be part of the front and/or rear seals but may be formed by other sheet-like components.

The holes that can be used as the binding holes in the outer sheet and/or the front and/or back covers may be single or two or more.

The seal ridge can take various forms. The seal ridge may be attached to the seal ridge holding portion by an adhesive means such as a tape or an adhesive. Further, an adhesive layer may be provided on the back surface side of the seal ridge. In this case, it is preferable that the releasable sheet is not provided with an adhesive layer, but provided with an adhesive layer only on the back side of the spine seal main body, because the releasable sheet can be cut and separated arbitrarily.

The release tab may be configured to be released from the spine seal body. In other words, the detachable sheet is not limited to a member that is detached from the seal main body by cutting the guide line. For example, the releasable sheet may also be a member configured to be peelable with respect to the spine seal body.

The shape of the detachable piece in the ridge and/or the form of the cutting guide line may be appropriately set, and is not limited to the shape and/or form shown in the above embodiments.

Hereinafter, a modified example of the seal ridge B will be described with reference to fig. 10 to 17. In the drawings, the same reference numerals are given to the same or corresponding components as those described in the above embodiments, and the description thereof is omitted.

In the spine B shown in fig. 10, a detachable piece B2 having a single longitudinal rectangular shape is provided at the center in the vertical direction and the horizontal direction of the spine main body B1 in the unfolded state via a cutting guide line s. The cutting guide wire s in this embodiment is mainly constituted by a plurality of linear slits s2 set to have a size shorter than that of the linear slits shown in the above-described embodiment.

In the front side region B11 and the back side region B12 of the main body B1 of the spine B in the developed state shown in fig. 11, a strip-shaped detachable piece B2 extending in the vertical direction is provided via a cutting guide line s. The cutting guide wire s of the present embodiment includes: a semicircular slit s3 having a semicircular arc shape, the semicircular slit s3 being provided at the upper end portion and the lower end portion; and a plurality of linear slits s2 of the same size, the plurality of linear slits s2 being provided between the semicircular arc slits s3 at the upper end portion and the lower end portion.

In the seal B shown in fig. 12, circular separable pieces B2 are provided at two upper and lower positions of the front side region B11 and the back side region B12 of the seal main body B1 in the developed state, respectively, via a cutting guide line s. Each releasable flap b2 is positioned in line with the holes h1, h2, h3 of the front seal 1, back seal 2 and outer side flaps 3. The cutting guide wire s of this embodiment is constituted by a plurality of curved slits s1 set to have the same size. Further, each releasable flap b2 is set larger than the holes h1, h2, h3 of the front seal 1, the rear seal 2 and the outer side flap 3.

In the same manner as the seal shown in fig. 12, in the seal B shown in fig. 13, circular releasable pieces B2 are provided in two upper and lower portions of the front side region B11 and the back side region B12 of the seal main body B1 in the developed state, respectively, via cutting guide lines s. Each releasable flap b2 is positioned in line with the holes h1, h2, h3 of the front seal 1, back seal 2 and outer side flaps 3. The cutting guide wire s according to this embodiment is composed of a single semicircular arc slit s3 and a plurality of curved slits s1 set to be shorter than the semicircular arc slit s 3. The semicircular arc slit s3 is provided above the upper releasable sheet b2 and below the lower releasable sheet b 2. Further, each releasable flap b2 is set larger than the holes h1, h2, h3 of the front seal 1, the rear seal 2 and the outer side flap 3.

In the same manner as the seal shown in fig. 12, in the seal B shown in fig. 14, circular releasable pieces B2 are provided in two upper and lower portions of the front side region B11 and the back side region B12 of the seal main body B1 in the developed state, respectively, via cutting guide lines s. Each releasable flap b2 is positioned in line with the holes h1, h2, h3 of the front seal 1, back seal 2 and outer side flaps 3. The cutting guide wire s according to this embodiment is constituted by a plurality of curved slits s1 that are set to have a longer dimension than the curved slits shown in fig. 12 and are set to have the same dimension. Further, each releasable flap b2 is set larger than the holes h1, h2, h3 of the front seal 1, the rear seal 2 and the outer side flap 3.

In the seal B shown in fig. 15, a bell-shaped separable piece B2 is provided at each of upper and lower two portions of a left region B11 and a right region B12 of a seal main body B1 in an unfolded state, via a cutting guide line s. Each releasable flap b2 is positioned in line with the holes h1, h2, h3 of the front seal 1, back seal 2 and outer side flaps 3. The cutting guide wire s according to this embodiment is mainly composed of a single semicircular arc slit s3 and a plurality of linear slits s2 provided so as to be continuous with the single semicircular arc slit s3 and arranged so as to draw コ as a whole. The semicircular arc slit s3 is provided at the upper part of the upper releasable sheet b2 and at the lower part of the lower releasable sheet b 2.

In the seal B shown in fig. 16, a substantially square releasable sheet B2 is provided at two upper and lower positions of the front side region B11 and the back side region B12 of the seal main body B1 in the developed state via a cutting guide line s. Each releasable flap b2 is positioned in line with the holes h1, h2, h3 of the front seal 1, back seal 2 and outer side flaps 3. The cutting guide wire s according to this embodiment is mainly configured by a single コ -shaped slit s4 and a plurality of linear slits s2 provided so as to be continuous with the single コ -shaped slit s4 and arranged so as to draw コ as a whole. A single コ -shaped slit s4 is provided above the upper releasable sheet b2 and below the lower releasable sheet b 2.

In the developed state of the spine B shown in fig. 17, the spine main body B1 is provided with strip-shaped detachable pieces B2 extending in the left-right direction via cutting guide lines s. The cutting guide wire s of the present embodiment includes: a plurality of curved slits s1 provided at left and right end portions of the releasable sheet b2, and a plurality of linear slits s2 provided between the left and right curved slits s 1.

The above-described modification can also achieve the desired object. It is needless to say that the modification is not limited to the specific example illustrated in the drawings.

In addition, the specific configuration of each part is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

Claims

1. A folder, comprising: sealing ridges; a cover provided with a spine holding part capable of holding the spine; and a pocket sheet which is engaged with the cover and formed into a bag shape,

the back cover holding part is provided with a hole which can be used as a binding hole,

the spine seal comprises a spine seal body and a detachable sheet having a portion overlapping the hole, and the detachable sheet is configured to be detachable from the spine seal body.

2. The file folder as set forth in claim 1,

the seal retaining portion includes an outer sheet and an inner sheet disposed inside the outer sheet, the seal is sandwiched and retained between the outer sheet and the inner sheet, and the holes are provided in the outer sheet and the inner sheet so as to be capable of communicating with each other,

the inner side panel is a portion of the cover that overlaps the outer side panel.

3. The file folder as set forth in claim 1,

the seal retaining part comprises an outer sheet and an inner sheet arranged on the inner side of the outer sheet,

the folder is provided with a front cover which is approximately rectangular and a back cover which is approximately rectangular and is used as the cover,

the front seal and the back seal are joined via the outer sheets attached to the outer surfaces of the front seal and the back seal,

the inner side panel is a portion of the back seal that overlaps the outer side panel and a portion of the front seal that overlaps the outer side panel.

4. The file folder as set forth in claim 3,

a seal ridge insertion opening into which the seal ridge can be inserted is formed between an inner end edge of the front seal and an inner end edge of the rear seal.

5. The file folder as set forth in claim 1,

the releasable tab is connected to the spine seal body via a cut guide line,

the detachable sheet is configured to be detachable from the seal ridge main body by cutting the cutting guide line.