JP2015131445A - booklet cover - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a booklet cover which can hold a thick article.SOLUTION: A booklet cover 1, which comprises an outside sheet 3 of rectangular form and an inside sheet 3 of rectangular form overlapped on one face side of the outside sheet 3 to make three-side peripheral edges adhere to three sides of the outside sheet 3 to form a bag body with a booklet 90 arranged on one face side of the inside sheet that is the outer face of the bag body, is characterized by having an open/close part 6 provided on one side different from the three sides of each of the outside sheet 3 and the inside sheet to open and close the mouth of the bag body and a stretching part 5 provided on the other side of the outside sheet 3 to stretch outside the bag body by holding an article in the bag body.

Description

  The present invention relates to a booklet cover that covers a booklet.

  A booklet cover that covers a booklet such as a book, a notebook, or a notebook is provided with a space between two overlapping sheets on the inside and outside, for example, as described in Patent Document 1, and writing instruments, memo paper, etc. Some items can be accommodated.

JP 2013-226664 A

  However, since the cover described in Patent Document 1 is a flat sheet, the two sheets constituting the cover are assumed to be small writing instruments. Therefore, there is a problem that the cover is damaged when an article to be stored such as a mobile phone or a portable music player is large. Or the sheet | seat which comprises a cover also deform | transformed.

  This invention is made | formed in view of such a situation, and it aims at providing the booklet cover which can accommodate a thick article.

  The booklet cover according to the present invention includes a rectangular outer sheet, and a rectangular inner sheet that is overlapped on one side of the outer sheet, and whose three edges are bonded to the three sides of the outer sheet. In a booklet cover that forms a bag body and covers the booklet by placing a booklet on one side of the inner sheet, which is the outer surface of the bag body, provided on one side different from the three sides of each of the outer sheet and the inner sheet An opening / closing portion that opens and closes the mouth of the bag body, and an extension portion that is provided on the other surface side of the outer sheet and extends outside the bag body when an article is accommodated in the bag body. It is characterized by having.

  In the booklet cover according to the present invention, the elongated portion has a layer shape in which the outer sheet is folded, and an outer layer whose one surface faces the outer side of the bag body, and a first fold at an end portion of the outer layer. A folded layer folded inward from the inside, and an inner layer that is folded back from the second crease at the end of the folded layer to the inside of the folded layer, one side facing the inside of the bag body, The outer surface is provided with a linear groove projecting in a direction perpendicular to the first fold from the both ends of the first fold.

  The booklet cover according to the present invention is characterized in that the elongate portion includes a fixing portion for bonding and fixing the layers on both ends in a direction perpendicular to the one side.

  The booklet cover according to the present invention is characterized in that the outer sheet is provided with a plurality of holes having different shapes between the extending portion and the opening / closing portion.

  ADVANTAGE OF THE INVENTION According to this invention, the booklet cover which can accommodate a thick article can be provided by providing an expansion | extension part in an outer sheet | seat.

It is a front perspective view which shows a booklet cover. It is a back perspective view which shows a booklet cover. It is a disassembled perspective view which shows a booklet cover. It is a front view which shows a booklet cover. It is sectional drawing which shows an expansion | extension part. It is a front perspective view which shows the use state of a booklet cover and a booklet. It is a top view which shows an outer side 1st cover part. It is a top view which shows an outer side 1st cover part. It is a top view which shows an outer side 1st cover part. It is a top view which shows an outer side 1st cover part. It is a top view which shows an outer side 1st cover part. It is a top view which shows an outer side 1st cover part. It is a top view which shows an outer side 1st cover part. It is a fragmentary perspective view which shows the use condition of a booklet cover. It is a top view which shows an outer side 1st cover part. It is a top view which shows an outer side 1st cover part. It is a top view which shows an outer side 1st cover part. It is a fragmentary top view which shows an outer side 1st cover part. It is a fragmentary top view which shows an outer side 1st cover part. It is a rear view which shows a booklet cover.

1st Embodiment The booklet cover 1 in this embodiment is demonstrated. FIG. 1 is a front perspective view showing the booklet cover 1. FIG. 2 is a rear perspective view showing the booklet cover 1. FIG. 3 is an exploded perspective view showing the booklet cover 1. The booklet cover 1 includes an inner sheet 2, an outer sheet 3, a first insertion sheet 41, and a second insertion sheet 43. The inner sheet 2 includes an inner first cover portion 21, an inner spine portion 22 that is a back portion, and an inner second cover portion 23. The outer sheet 3 includes an outer first cover portion 31, an outer spine portion 32 that is a back portion, and an outer second cover portion 33.

  The inner sheet 2 has a rectangular shape and is made of a resin containing polyethylene, polypropylene, vinyl chloride, or the like. The inner first cover part 21, the inner back cover part 22, and the inner second cover part 23 are provided continuously in the longitudinal direction of the inner sheet 2. The inner first cover portion 21 and the inner second cover portion 23 have a rectangular shape with the same size. The inner spine portion 22 connects the inner first cover portion 21 and the inner second cover portion 23, and the short side is shorter than the inner first cover portion 21 and the inner second cover portion 23. Shorter than the side.

  The outer sheet 3 has a rectangular shape and is made of a resin containing polyethylene, polypropylene, vinyl chloride, and the like. The outer first cover 31, the outer spine 32, and the second outer cover 33 are continuously arranged in the longitudinal direction of the outer sheet 3. The outer first cover portion 31, the outer back cover portion 32, and the outer second cover portion 33 have substantially the same dimensions as the inner first cover portion 21, the inner back cover portion 22, and the inner second cover portion 23, respectively. The inner sheet 2 and the outer sheet 3 are continuous on a certain side. That is, it may be composed of a single sheet.

  The inner sheet 2 and the outer sheet 3 are overlapped, and the two long side edges and one short side edge are bonded and integrated. That is, the bonding part 11 where the inner sheet 2 and the outer sheet 3 are bonded has a U-shape along the periphery. Thereby, a bag body is formed by the inner sheet 2 and the outer sheet 3, and an article can be accommodated in the bag body. The shape of the rectangular outer sheet 3 and the inner sheet 2 includes a square shape.

  The 1st insertion sheet 41 and the 2nd insertion sheet 43 are the surfaces where the outer side first cover part 31 and the outer side second cover part 33 adhere in the inner side first cover part 21 and the inner side second cover part 23, respectively. It is adhered to the back side of the. The first insertion sheet 41 and the second insertion sheet 43 have the same long side as the inner first cover part 21 and the inner second cover part 23, and the shorter side is the inner first cover part 21 and the inner first cover part 21. It is shorter than the two cover parts 23.

  The 1st insertion sheet 41 is adhere | attached with the edge of the inner side 1st cover part 21 in the adhesion part 12 which hits the edge of three sides except an inner side. On the other hand, the first insertion sheet 41 is not bonded to the inner sheet 2 at the long side on the inner spine cover 22 side. Thereby, an insertion port is formed on the long side of the first insertion sheet 41 on the inner spine portion 22 side.

  The 2nd insertion sheet 43 is adhere | attached with the edge of the inner side 2nd cover part 23 in the adhesion part 13 to which three sides except the inner side are adhere | attached. On the other hand, the long side of the second insertion sheet 43 on the inner spine cover 22 side is not bonded to the inner sheet 2. Thereby, as for the 2nd insertion sheet 43, an insertion port is formed in the long side by the side of the inner back cover part 22 side.

  A front cover and a back cover of the booklet 90 are formed in two insertion openings formed by the inner first cover portion 21 and the first insertion sheet 41, and the inner second cover portion 23 and the second insertion sheet 43, respectively. To be used. Thus, one of the front cover and the back cover of the booklet 90 is covered by the inner first cover part 21 and the outer first cover part 31, and the spine cover is covered by the inner spine part 22 and the outer spine part 32, The other cover page is covered by the inner second cover part 23 and the outer second cover part 33. The booklet 90 is, for example, a book, a notebook, a notebook, or the like, but may be such that one side of the paper bundle is fastened with a ring.

  An opening / closing part 6 is provided on the periphery of one long side of the inner first cover part 21 and the outer first cover part 31. The opening / closing part 6 includes rails 61 and 62 and a slider 63.

  A rail 61 having an unevenness toward the outer first cover portion 31 is also provided on the periphery of one long side of the inner first cover portion 21. The outer first cover portion 31 is provided with rails 62 that are uneven along the long side and toward the inner first cover portion 21. Further, a slider 63 is provided across the rails 61 and 62, and the rail 61 and the rail 62 are fitted and detached when the slider 63 slides.

  By sliding the slider 63 and detaching the rail 61 of the inner first cover portion 21 and the rail 62 of the outer first cover portion 31, an article is accommodated in a bag body constituted by the inner sheet 2 and the outer sheet 3. can do. In addition, after the accommodation, by sliding the slider 63 and fitting the rail 61 and the rail 62 together, it is possible to prevent the accommodated article from being detached.

  The rails 61 and 62 and the slider 63 are made of resin, but may be made of metal. Further, instead of the rails 61 and 62, a tooth that can be fitted may be provided.

  The opening / closing part 6 is provided on the long side of the inner first cover part 21 and the outer first cover part 31, and a bag body formed by the inner first cover part 21 and the outer first cover part 31 is provided. As long as it can be opened and closed, it may be other than a slide fastener. For example, you may provide the hook-and-loop fastener which can open and close a bag body. Moreover, you may provide a magnet in the periphery of each of the inner side 1st cover part 21 and the outer side 1st cover part 31. FIG. In addition, the inner first cover portion 21 and the outer first cover portion 31 may be provided with a fastener for fastening the mouth of the bag body.

  FIG. 4 is a front view showing the booklet cover 1. FIG. 5 is a cross-sectional view showing the elongated portion 5. 5 is a cross-sectional view taken along the line AA in FIG. Further, an extension portion 5 on which the outer sheet 3 is superimposed is provided in the vicinity of the outer back cover portion 32, which is the outer first cover portion 31. When the article is accommodated, the extension part 5 opens the folded extension part 5 and the outer first cover part 31 extends outward.

  The elongated portion 5 has the outer sheet 3 folded back, and has a layered shape in which an outer layer 51, a folded layer 52, and an inner layer 53 are stacked. The outer layer 51, the folded layer 52, and the inner layer 53 have the same strip shape, and the longitudinal direction is parallel to the long side of the outer first cover 31, and is provided over the entire length of the long side. .

  The extending portion 5 is folded inward from a first fold 51 a that is an end on the outer spine portion 32 side of the outer layer 51, and the folded layer 52 is stacked under the outer layer 51. Further, the folded layer 52 is folded inward from a second fold 52 a that is an end on the opening / closing part 6 side, and an inner layer 53 is overlaid on the folded layer 52. Both the first fold line 51 a and the second fold line 52 a are parallel to the long side of the outer first cover part 31.

  In the three layers of the outer layer 51, the folded layer 52, and the inner layer 53, two short sides corresponding to both ends in the vertical direction on the opening / closing portion 6 side and the outer spine portion 32 side are bonded. In the present embodiment, the extending portion 5 overlaps three layers, but may overlap, for example, five layers or seven layers. The extending portion 5 extends in the direction opposite to the outer side of the bag, that is, the direction in which the inner sheet 2 is provided.

  By providing the extending portion 5, the amount of accommodation can be increased when the opening / closing portion 6 is opened and the article is accommodated in the bag. Further, it is possible to prevent a situation in which the inner sheet 2 or the outer sheet 3 is pulled by accommodating the article and the bonded peripheral edge is torn.

  The outer layer 51, which is the outermost layer of the elongated portion 5, is provided with a linear groove 55 on the outer surface. The groove 55 is provided over substantially the entire longitudinal direction of the elongated portion 5, has a linear shape, and an opening / closing portion in which the center side is more perpendicular to the first fold 51 a than the both ends of the first fold 51 a. It has a trapezoidal mountain shape protruding to the 6th side.

  By providing the groove 55, when the article is accommodated in the bag formed by the inner sheet 2 and the outer sheet 3 and the elongated portion 5 spreads, a fold along the groove 55 is formed. Even when an article is stored, it can be stored with good appearance.

  Further, fixed portions 54 are provided on both ends of the elongated portion 5, that is, slightly inside the both ends. The fixing portion 54 fixes each layer of the outer layer 51, the folded layer 52, and the inner layer 53 that are overlapped in three layers. The fixing portion 54 has, for example, a right triangle shape, and the fixing portion 54 is longer in the longitudinal direction of the extension portion 5 on the outer spine portion 32 side than on the side close to the slider 63. The shape of the fixing portion 54 may be trapezoidal, or may be other polygonal shape, elliptical shape, or the like.

  When an article is placed in a bag, a force is applied to the edge of the outer sheet 3, the outer sheet 3 is torn, or the booklet cover 1 is damaged, such as the adhesion between the outer sheet 3 and the inner sheet 2 being peeled off. Occurs. However, since the vicinity of the periphery of the elongated portion 5 is reinforced by providing the fixing portion 54 in the elongated portion 5, the booklet cover 1 can be prevented from being damaged. Note that the fixing portion 54 is not necessarily provided.

  Further, between the extended portion 5 and the opening / closing portion 6 in the outer first cover portion 31, in the vicinity of the extended portion 5, and on one short side of the outer first cover portion 31, the other short side An arcuate hole 34 protruding to the side is provided. FIG. 6 is a front perspective view showing a use state of the booklet cover 1 and the booklet 90. For example, a writing instrument 91 can be inserted into such a hole 34 into the bag body, and a clip portion or the like can be engaged with the periphery of the hole 34.

  In addition, between the extended portion 5 and the opening / closing portion 6 in the outer first cover portion 31, in the vicinity of the extended portion 5 and on the other short side of the outer first cover portion 31, An arc-shaped hole 35 protruding to the side is provided. The hole 35 is different in shape from the hole 34 and is smaller than the hole 34. For example, when the portable music player 92 is placed in a bag, the earphone wiring 93 can be passed through the hole 35 and a part of the wire can be exposed to the outside of the bag.

  FIG. 7 is a plan view showing the outer first cover portion 31. Further, grooves 341 and 351 may be provided instead of the holes 34 and 35. In the grooves 341 and 351, the outer sheet 3 is thinner than other portions, and the user can tear the outer sheet 3 by hand along the grooves 341 and 351. When the user tears the outer sheet 3 along the grooves 341 and 351, curved holes 34 and 35 having a substantially arc shape are formed.

  Further, as shown in FIGS. 1 and 6, the outer second cover portion 33 is provided with a linear slit 80. The slit 80 is slightly closer to the center on the long side of the second outer cover 33 and is provided at the center on the short side. The slit 80 has a linear shape inclined by about 10 degrees to 30 degrees with respect to the short side of the outer second cover portion 33 and extends near both ends in the lateral direction.

  Further, at both ends of the slit 80, circular portions having a circular shape having a diameter larger than the width of the slit are provided. By having such a circular portion, the outer second cover portion 33 is prevented from tearing from the end of the slit 80. Since the linear second slit 80 is provided in the outer second cover portion 33, the outer second cover portion 33 can also store articles. The slit 80 is convenient particularly when accommodating a thin article such as paper.

  According to the present embodiment, the extended portion 5 is provided on the outer sheet 3, whereby the booklet cover 1 that can accommodate a thick article can be provided.

Second Embodiment A second embodiment will be described. In the present embodiment, the shape of the hole 34 is different from that of the first embodiment. FIG. 8 is a plan view showing the outer first cover portion 31. The outer first cover 31 may be provided with a linear hole 34 as shown in FIG. In FIG. 8, both ends of the hole 71 are circular. When the hole 71 has such a shape, the outer sheet 3 can be prevented from being damaged. FIG. 9 is a plan view showing the outer first cover portion 31. As shown in FIG. 9, both ends of the linear hole 72 may be partially circular instead of circular. Moreover, in this embodiment, although the hole 34 is provided in the vicinity of the expansion | extension part 5, it is an example and the position is not ask | required.

  FIG. 10 is a plan view showing the outer first cover portion 31. As shown in FIG. 10, the outer first cover portion 31 may be provided with a straight portion and a circular portion via a connecting portion. The straight line portion is provided in parallel with the short side of the outer first cover portion 31, and the circular portion is provided on an extension line of the straight line portion, and the diameter of the circular portion and the width of the straight line portion are substantially equal. The connecting portion is narrower than the hole in the straight portion.

  Since the hole 34 has the shape shown in FIG. 10, for example, a straight portion and a circular portion can be used for different purposes.

  FIG. 11 is a plan view showing the outer first cover portion 31. As shown in FIG. 11, the hole 34 provided in the outer first cover 31 may have a shape in which a plurality of linear portions having a certain angle are connected. For example, in FIG. 11, the shape which comprises a part of regular hexagon is comprised. In FIG. 11, the end of the hole 34 is circular. The hole 34 may have a straight line shape parallel to the short side of the outer first cover portion 31. The shape of the hole 35 may be the same shape as the hole 34 in FIGS.

  FIG. 12 is a plan view showing the outer first cover portion 31. As shown in FIG. 12, the hole 36 may be provided at the edge of the outer first cover 31. A notch is provided in one short side of the outer first cover portion 31, and the edge of the outer first cover portion 31 excluding such a notch is bonded to the inner first cover portion 21, thereby providing a hole 36. Is formed. The hole 36 has a linear shape parallel to the short side of the outer first cover portion 31. By providing the hole 36 at the edge, for example, it becomes easy to put a writing instrument into the hole 36.

Third Embodiment A third embodiment will be described. In the present embodiment, the hole of the outer first cover portion 31 is covered.

  FIG. 13 is a plan view showing the outer first cover portion 31. The outer first cover portion 31 is provided with a hole 37 having a shape in which a plurality of linear holes having a certain angle are connected. Both ends of the hole 37 have a linear shape along the longitudinal direction of the outer first cover portion 31, and the two line segments provided between the both ends have a mountain shape.

  Furthermore, a rectangular cover 70 covering the entire hole is provided. The entire circumference of the cover part 70 is bonded to the outer first cover part 31, and a straight hole 71 is provided along the short direction of the outer first cover part 31. Both ends of the hole 71 are arranged so as to overlap with both ends of the hole 37 of the outer first cover 31 in a plan view. FIG. 14 is a partial perspective view showing a use state of the booklet cover 1. In addition, in this embodiment, although the hole 37 and the cover part 70 are provided in the vicinity of the opening-and-closing part 6, it is an example and the position is not ask | required. In addition, the both ends of the hole 71 may be arrange | positioned so that it may overlap with the both ends of the hole 37 of the outer side 1st cover part 31, and it may become a near position in planar view.

  FIG. 15 is a plan view showing the outer first cover portion 31. In FIG. 15, the hole 37 of the outer first cover portion 31 has a semicircular shape having an arc protruding toward one short side of the outer first cover portion 31. On the other hand, the hole 71 of the cover part 70 has a semicircular shape having an arc protruding on the other short side of the outer first cover part 31 on the longitudinal direction side of the outer first cover part 31. . In addition, both the hole 37 and the hole 71 are provided with a small semicircular portion at the end of the straight portion. By providing such a semicircular portion, the outer first cover 31 is prevented from tearing from the hole 37 and the hole 71 when the article is inserted. The hole 37 of the outer first cover part 31 and the hole 71 of the cover part 70 are juxtaposed in the longitudinal direction of the outer first cover part 31 in plan view.

  According to the present embodiment, by providing the cover portion 70, it is possible to suppress entry of foreign matter such as dust. Further, when an article such as a writing instrument is accommodated, the article is inserted through the hole 71 and the hole 37 having different positions, so that the position of the article can be fixed.

Fourth Embodiment A fourth embodiment will be described. In the present embodiment, a plurality of extending portions 5 are provided.

  FIG. 16 is a plan view showing the outer first cover portion 31. In the present embodiment, two extending portions 5 and 5 are provided on the outer first cover portion 31.

  One extending portion 5 is provided on the side of the outer first cover portion 31 that is close to the outer spine portion 32. The other extension part 5 is provided at a position close to the opening / closing part 6 in the outer first cover part 31. The two extending portions 5 and 5 are provided such that the first fold line 51 a and the second fold line 52 a are parallel to the long side of the outer first cover part 31. The two grooves 55, 55 protrude in directions facing each other.

  FIG. 17 is a plan view showing the outer first cover portion 31. The extending portions 5 and 5 have the same outer band formed in the same shape, the longitudinal direction is parallel to the short side of the outer first cover 31 and is provided over the entire length of the short side. Also good. In addition, the extending part 5 whose longitudinal direction is parallel to the short side of the outer first cover part 31 and the extending part 5 whose longitudinal direction is parallel to the long side of the outer first cover part 31 may be provided in combination. For example, provided in the vicinity of the two short sides of the outer first cover 31, provided in the vicinity of the elongated portions 5, 5 whose longitudinal direction is parallel to the short side of the outer first cover 31, and the outer spine 32. The extension part 5 whose longitudinal direction is parallel to the long side of the outer first cover part 31 may be provided so as to form a U-shape.

  According to this embodiment, the capacity | capacitance which can be accommodated can be increased by providing two or more expansion | extension parts 5 compared with the case where the expansion | extension part 5 is one.

Fifth Embodiment A fifth embodiment will be described. This embodiment is different from the first embodiment in the shape of the groove 55.

  FIG. 18 is a partial plan view showing the outer first cover portion 31. The groove 55 in FIG. 18 has an arc shape protruding toward the opening / closing part 6. FIG. 19 is a partial plan view showing the outer first cover portion 31. Further, as shown in FIG. 19, the groove 55 may have a mountain shape in which the end points of two straight lines are joined and the joining portion protrudes toward the opening / closing part 6. The groove 55 may have another shape as long as it has a linear shape protruding in a direction perpendicular to the first fold 51a.

Sixth Embodiment A sixth embodiment will be described. This embodiment differs in the form of the 1st insertion sheet 41 and the 2nd insertion sheet 43. FIG.

  FIG. 20 is a rear view showing the booklet cover 1. A plurality of first insertion sheets 41, 41... The overlapped first insertion sheets 41, 41... Are bonded in a U shape at the periphery. Thus, articles such as paper can be accommodated between the overlapped first insertion sheets 41, 41.

  Moreover, the 1st insertion sheets 41 and 41 are parallel to the transversal direction of the 1st insertion sheets 41 and 41 in the center vicinity, and the linear adhesion part 44 mutually adhere | attached is provided. Since the first insertion sheets 41 and 41 are partitioned by adhering the two overlapping first insertion sheets 41 and 41, the bonding portion 44 is convenient when accommodating small articles. Similarly, the second insertion sheets 43, 43... Are provided with linear adhesive portions 44.

  According to the present embodiment, a plurality of first insertion sheets 41, 41... Or second insertion sheets 43, 43. Articles can be accommodated between the insertion sheets 43, 43. This is particularly convenient when storing thin articles such as paper.

Seventh Embodiment A seventh embodiment will be described. In the present embodiment, the booklet cover 1 is used as a cover for an electronic device that covers the electronic device.

  The booklet cover 1 is not limited to the paper booklet 90, and may cover an electronic device such as a mobile phone, a PDA (Personal Digital Assistant), a book reader, a tablet terminal, or a notebook computer. In this case, for example, instead of the second insertion sheet 43, a fastener or the like for fastening a corner of the plate-like electronic device may be provided. For example, the fasteners are provided at locations corresponding to the four corners of the electronic device, have both ends bonded to the inner sheet 2, and insert the corners of the electronic device into the gap between the fastener and the inner sheet 2. It may be possible.

  In the present embodiment, the inner sheet 2 may be configured to be thicker and less likely to bend than the inner sheet 2 in the first to sixth embodiments.

  The embodiments disclosed herein are illustrative in all respects and should not be considered as restrictive. The scope of the present invention is defined not by the above-mentioned meaning but by the scope of the claims, and is intended to include all modifications within the meaning and scope equivalent to the scope of the claims. Further, the technical features described in each embodiment can be combined with each other, and a new technical feature can be formed by combining them.

Regarding the above embodiment, the following additional notes are disclosed.
[Appendix 1]
The outer sheet and the inner sheet include a back corresponding to the position of the spine in the booklet,
The extension part is provided in the opening-and-closing part side from the back. The booklet cover characterized by things.
[Appendix 2]
The booklet cover, wherein the first fold and the second fold are parallel to the one side.
[Appendix 3]
A booklet cover, wherein the first sheet is provided with a slit.

DESCRIPTION OF SYMBOLS 1 Booklet cover 11, 12, 13, 44 Bonding part 2 Inner sheet 21 Inner first cover part 22 Inner back cover part 23 Inner second cover part 3 Outer sheet 31 Outer first cover part 32 Outer spine part 33 Outer second Cover part 34, 35, 36, 37, 71 Hole 341, 351 Groove 41 First insertion sheet 43 Second insertion sheet 5 Extension part 51 Outer layer 51a First fold 52 Folding layer 52a Second fold 53 Inner layer 54 Fixed Section 55 Groove 6 Opening / closing section 61, 62 Rail 63 Slider 70 Cover section 80 Slit 90 Booklet 91 Writing instrument 92 Portable music player 93 Earphone wiring 94 Paper

Claims (4)

A rectangular outer sheet;
It is overlapped on one side of the outer sheet, and a bag body is formed by including a rectangular inner sheet in which the periphery of three sides is bonded to the three sides of the outer sheet,
In the booklet cover that covers the booklet by placing the booklet on one side of the inner sheet that is the outer surface of the bag body,
An opening / closing part that is provided on one side different from the three sides of each of the outer sheet and the inner sheet, and opens and closes the mouth of the bag body;
A booklet cover, comprising: an extension portion which is provided on the other surface side of the outer sheet and extends to the outside of the bag body when an article is accommodated in the bag body. The elongated portion has a layered shape in which the outer sheet is folded,
An outer layer with one side facing the outside of the bag,
A folded layer folded inward from the first fold at the end of the outer layer;
The second fold at the end of the folded layer is folded back to the inner side of the folded layer, and one side includes an inner layer facing the inner side of the bag,
2. The outer surface of the outer layer is provided with a linear groove that protrudes in a direction perpendicular to the first fold from the both ends of the first fold. The booklet cover described in 1. The booklet cover according to claim 2, wherein the extending portion includes a fixing portion that adheres and fixes each layer on both ends in a direction perpendicular to the one side. The booklet cover according to any one of claims 1 to 3, wherein the outer sheet is provided with a plurality of holes having different shapes between the extending portion and the opening / closing portion.

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